source: josm/trunk/src/org/openstreetmap/josm/gui/layer/geoimage/CorrelateGpxWithImages.java@ 7299

Last change on this file since 7299 was 7299, checked in by Don-vip, 10 years ago

fix #10121 - Add a new look-and-feel preference to display ISO 8601 dates globally
  • Property svn:eol-style set to native
File size: 52.9 KB
Line 
1// License: GPL. See LICENSE file for details.
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.GridBagConstraints;
12import java.awt.GridBagLayout;
13import java.awt.event.ActionEvent;
14import java.awt.event.ActionListener;
15import java.awt.event.FocusEvent;
16import java.awt.event.FocusListener;
17import java.awt.event.ItemEvent;
18import java.awt.event.ItemListener;
19import java.awt.event.WindowAdapter;
20import java.awt.event.WindowEvent;
21import java.io.File;
22import java.io.FileInputStream;
23import java.io.FileNotFoundException;
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.TimeZone;
38import java.util.zip.GZIPInputStream;
39
40import javax.swing.AbstractAction;
41import javax.swing.AbstractListModel;
42import javax.swing.BorderFactory;
43import javax.swing.JButton;
44import javax.swing.JCheckBox;
45import javax.swing.JFileChooser;
46import javax.swing.JLabel;
47import javax.swing.JList;
48import javax.swing.JOptionPane;
49import javax.swing.JPanel;
50import javax.swing.JScrollPane;
51import javax.swing.JSeparator;
52import javax.swing.JSlider;
53import javax.swing.ListSelectionModel;
54import javax.swing.SwingConstants;
55import javax.swing.event.ChangeEvent;
56import javax.swing.event.ChangeListener;
57import javax.swing.event.DocumentEvent;
58import javax.swing.event.DocumentListener;
59import javax.swing.event.ListSelectionEvent;
60import javax.swing.event.ListSelectionListener;
61import javax.swing.filechooser.FileFilter;
62
63import org.openstreetmap.josm.Main;
64import org.openstreetmap.josm.actions.DiskAccessAction;
65import org.openstreetmap.josm.data.gpx.GpxData;
66import org.openstreetmap.josm.data.gpx.GpxTrack;
67import org.openstreetmap.josm.data.gpx.GpxTrackSegment;
68import org.openstreetmap.josm.data.gpx.WayPoint;
69import org.openstreetmap.josm.data.osm.visitor.BoundingXYVisitor;
70import org.openstreetmap.josm.gui.ExtendedDialog;
71import org.openstreetmap.josm.gui.layer.GpxLayer;
72import org.openstreetmap.josm.gui.layer.Layer;
73import org.openstreetmap.josm.gui.widgets.JosmComboBox;
74import org.openstreetmap.josm.gui.widgets.JosmTextField;
75import org.openstreetmap.josm.io.GpxReader;
76import org.openstreetmap.josm.tools.ExifReader;
77import org.openstreetmap.josm.tools.GBC;
78import org.openstreetmap.josm.tools.ImageProvider;
79import org.openstreetmap.josm.tools.date.DateUtils;
80import org.openstreetmap.josm.tools.date.PrimaryDateParser;
81import org.xml.sax.SAXException;
82
83/**
84 * This class displays the window to select the GPX file and the offset (timezone + delta).
85 * Then it correlates the images of the layer with that GPX file.
86 */
87public class CorrelateGpxWithImages extends AbstractAction {
88
89 private static List<GpxData> loadedGpxData = new ArrayList<>();
90
91 GeoImageLayer yLayer = null;
92 double timezone;
93 long delta;
94
95 /**
96 * Constructs a new {@code CorrelateGpxWithImages} action.
97 * @param layer The image layer
98 */
99 public CorrelateGpxWithImages(GeoImageLayer layer) {
100 super(tr("Correlate to GPX"), ImageProvider.get("dialogs/geoimage/gpx2img"));
101 this.yLayer = layer;
102 }
103
104 private static class GpxDataWrapper {
105 String name;
106 GpxData data;
107 File file;
108
109 public GpxDataWrapper(String name, GpxData data, File file) {
110 this.name = name;
111 this.data = data;
112 this.file = file;
113 }
114
115 @Override
116 public String toString() {
117 return name;
118 }
119 }
120
121 ExtendedDialog syncDialog;
122 List<GpxDataWrapper> gpxLst = new ArrayList<>();
123 JPanel outerPanel;
124 JosmComboBox<GpxDataWrapper> cbGpx;
125 JosmTextField tfTimezone;
126 JosmTextField tfOffset;
127 JCheckBox cbExifImg;
128 JCheckBox cbTaggedImg;
129 JCheckBox cbShowThumbs;
130 JLabel statusBarText;
131
132 // remember the last number of matched photos
133 int lastNumMatched = 0;
134
135 /** This class is called when the user doesn't find the GPX file he needs in the files that have
136 * been loaded yet. It displays a FileChooser dialog to select the GPX file to be loaded.
137 */
138 private class LoadGpxDataActionListener implements ActionListener {
139
140 @Override
141 public void actionPerformed(ActionEvent arg0) {
142 FileFilter filter = new FileFilter(){
143 @Override public boolean accept(File f) {
144 return (f.isDirectory()
145 || f .getName().toLowerCase().endsWith(".gpx")
146 || f.getName().toLowerCase().endsWith(".gpx.gz"));
147 }
148 @Override public String getDescription() {
149 return tr("GPX Files (*.gpx *.gpx.gz)");
150 }
151 };
152 JFileChooser fc = DiskAccessAction.createAndOpenFileChooser(true, false, null, filter, JFileChooser.FILES_ONLY, null);
153 if (fc == null)
154 return;
155 File sel = fc.getSelectedFile();
156
157 try {
158 outerPanel.setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
159
160 for (int i = gpxLst.size() - 1 ; i >= 0 ; i--) {
161 GpxDataWrapper wrapper = gpxLst.get(i);
162 if (wrapper.file != null && sel.equals(wrapper.file)) {
163 cbGpx.setSelectedIndex(i);
164 if (!sel.getName().equals(wrapper.name)) {
165 JOptionPane.showMessageDialog(
166 Main.parent,
167 tr("File {0} is loaded yet under the name \"{1}\"", sel.getName(), wrapper.name),
168 tr("Error"),
169 JOptionPane.ERROR_MESSAGE
170 );
171 }
172 return;
173 }
174 }
175 GpxData data = null;
176 try (InputStream iStream = createInputStream(sel)) {
177 GpxReader reader = new GpxReader(iStream);
178 reader.parse(false);
179 data = reader.getGpxData();
180 data.storageFile = sel;
181
182 } catch (SAXException x) {
183 Main.error(x);
184 JOptionPane.showMessageDialog(
185 Main.parent,
186 tr("Error while parsing {0}",sel.getName())+": "+x.getMessage(),
187 tr("Error"),
188 JOptionPane.ERROR_MESSAGE
189 );
190 return;
191 } catch (IOException x) {
192 Main.error(x);
193 JOptionPane.showMessageDialog(
194 Main.parent,
195 tr("Could not read \"{0}\"",sel.getName())+"\n"+x.getMessage(),
196 tr("Error"),
197 JOptionPane.ERROR_MESSAGE
198 );
199 return;
200 }
201
202 loadedGpxData.add(data);
203 if (gpxLst.get(0).file == null) {
204 gpxLst.remove(0);
205 }
206 gpxLst.add(new GpxDataWrapper(sel.getName(), data, sel));
207 cbGpx.setSelectedIndex(cbGpx.getItemCount() - 1);
208 } finally {
209 outerPanel.setCursor(Cursor.getDefaultCursor());
210 }
211 }
212
213 private InputStream createInputStream(File sel) throws IOException, FileNotFoundException {
214 if (sel.getName().toLowerCase().endsWith(".gpx.gz")) {
215 return new GZIPInputStream(new FileInputStream(sel));
216 } else {
217 return new FileInputStream(sel);
218 }
219 }
220 }
221
222 /**
223 * This action listener is called when the user has a photo of the time of his GPS receiver. It
224 * displays the list of photos of the layer, and upon selection displays the selected photo.
225 * From that photo, the user can key in the time of the GPS.
226 * Then values of timezone and delta are set.
227 * @author chris
228 *
229 */
230 private class SetOffsetActionListener implements ActionListener {
231 JPanel panel;
232 JLabel lbExifTime;
233 JosmTextField tfGpsTime;
234 JosmComboBox<String> cbTimezones;
235 ImageDisplay imgDisp;
236 JList<String> imgList;
237
238 @Override
239 public void actionPerformed(ActionEvent arg0) {
240 SimpleDateFormat dateFormat = (SimpleDateFormat) DateUtils.getDateTimeFormat(DateFormat.SHORT, DateFormat.SHORT);
241
242 panel = new JPanel();
243 panel.setLayout(new BorderLayout());
244 panel.add(new JLabel(tr("<html>Take a photo of your GPS receiver while it displays the time.<br>"
245 + "Display that photo here.<br>"
246 + "And then, simply capture the time you read on the photo and select a timezone<hr></html>")),
247 BorderLayout.NORTH);
248
249 imgDisp = new ImageDisplay();
250 imgDisp.setPreferredSize(new Dimension(300, 225));
251 panel.add(imgDisp, BorderLayout.CENTER);
252
253 JPanel panelTf = new JPanel();
254 panelTf.setLayout(new GridBagLayout());
255
256 GridBagConstraints gc = new GridBagConstraints();
257 gc.gridx = gc.gridy = 0;
258 gc.gridwidth = gc.gridheight = 1;
259 gc.weightx = gc.weighty = 0.0;
260 gc.fill = GridBagConstraints.NONE;
261 gc.anchor = GridBagConstraints.WEST;
262 panelTf.add(new JLabel(tr("Photo time (from exif):")), gc);
263
264 lbExifTime = new JLabel();
265 gc.gridx = 1;
266 gc.weightx = 1.0;
267 gc.fill = GridBagConstraints.HORIZONTAL;
268 gc.gridwidth = 2;
269 panelTf.add(lbExifTime, gc);
270
271 gc.gridx = 0;
272 gc.gridy = 1;
273 gc.gridwidth = gc.gridheight = 1;
274 gc.weightx = gc.weighty = 0.0;
275 gc.fill = GridBagConstraints.NONE;
276 gc.anchor = GridBagConstraints.WEST;
277 panelTf.add(new JLabel(tr("Gps time (read from the above photo): ")), gc);
278
279 tfGpsTime = new JosmTextField(12);
280 tfGpsTime.setEnabled(false);
281 tfGpsTime.setMinimumSize(new Dimension(155, tfGpsTime.getMinimumSize().height));
282 gc.gridx = 1;
283 gc.weightx = 1.0;
284 gc.fill = GridBagConstraints.HORIZONTAL;
285 panelTf.add(tfGpsTime, gc);
286
287 gc.gridx = 2;
288 gc.weightx = 0.2;
289 panelTf.add(new JLabel(" ["+dateFormat.toLocalizedPattern()+"]"), gc);
290
291 gc.gridx = 0;
292 gc.gridy = 2;
293 gc.gridwidth = gc.gridheight = 1;
294 gc.weightx = gc.weighty = 0.0;
295 gc.fill = GridBagConstraints.NONE;
296 gc.anchor = GridBagConstraints.WEST;
297 panelTf.add(new JLabel(tr("I am in the timezone of: ")), gc);
298
299 String[] tmp = TimeZone.getAvailableIDs();
300 List<String> vtTimezones = new ArrayList<>(tmp.length);
301
302 for (String tzStr : tmp) {
303 TimeZone tz = TimeZone.getTimeZone(tzStr);
304
305 String tzDesc = new StringBuilder(tzStr).append(" (")
306 .append(formatTimezone(tz.getRawOffset() / 3600000.0))
307 .append(')').toString();
308 vtTimezones.add(tzDesc);
309 }
310
311 Collections.sort(vtTimezones);
312
313 cbTimezones = new JosmComboBox<>(vtTimezones.toArray(new String[0]));
314
315 String tzId = Main.pref.get("geoimage.timezoneid", "");
316 TimeZone defaultTz;
317 if (tzId.length() == 0) {
318 defaultTz = TimeZone.getDefault();
319 } else {
320 defaultTz = TimeZone.getTimeZone(tzId);
321 }
322
323 cbTimezones.setSelectedItem(new StringBuilder(defaultTz.getID()).append(" (")
324 .append(formatTimezone(defaultTz.getRawOffset() / 3600000.0))
325 .append(')').toString());
326
327 gc.gridx = 1;
328 gc.weightx = 1.0;
329 gc.gridwidth = 2;
330 gc.fill = GridBagConstraints.HORIZONTAL;
331 panelTf.add(cbTimezones, gc);
332
333 panel.add(panelTf, BorderLayout.SOUTH);
334
335 JPanel panelLst = new JPanel();
336 panelLst.setLayout(new BorderLayout());
337
338 imgList = new JList<>(new AbstractListModel<String>() {
339 @Override
340 public String getElementAt(int i) {
341 return yLayer.data.get(i).getFile().getName();
342 }
343
344 @Override
345 public int getSize() {
346 return yLayer.data.size();
347 }
348 });
349 imgList.getSelectionModel().setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
350 imgList.getSelectionModel().addListSelectionListener(new ListSelectionListener() {
351
352 @Override
353 public void valueChanged(ListSelectionEvent arg0) {
354 int index = imgList.getSelectedIndex();
355 Integer orientation = null;
356 try {
357 orientation = ExifReader.readOrientation(yLayer.data.get(index).getFile());
358 } catch (Exception e) {
359 Main.warn(e);
360 }
361 imgDisp.setImage(yLayer.data.get(index).getFile(), orientation);
362 Date date = yLayer.data.get(index).getExifTime();
363 if (date != null) {
364 DateFormat df = DateUtils.getDateTimeFormat(DateFormat.SHORT, DateFormat.SHORT);
365 lbExifTime.setText(df.format(date));
366 tfGpsTime.setText(df.format(date));
367 tfGpsTime.setCaretPosition(tfGpsTime.getText().length());
368 tfGpsTime.setEnabled(true);
369 tfGpsTime.requestFocus();
370 } else {
371 lbExifTime.setText(tr("No date"));
372 tfGpsTime.setText("");
373 tfGpsTime.setEnabled(false);
374 }
375 }
376 });
377 panelLst.add(new JScrollPane(imgList), BorderLayout.CENTER);
378
379 JButton openButton = new JButton(tr("Open another photo"));
380 openButton.addActionListener(new ActionListener() {
381
382 @Override
383 public void actionPerformed(ActionEvent ae) {
384 JFileChooser fc = DiskAccessAction.createAndOpenFileChooser(true, false, null, JpegFileFilter.getInstance(),
385 JFileChooser.FILES_ONLY, "geoimage.lastdirectory");
386 if (fc == null)
387 return;
388 File sel = fc.getSelectedFile();
389
390 Integer orientation = null;
391 try {
392 orientation = ExifReader.readOrientation(sel);
393 } catch (Exception e) {
394 Main.warn(e);
395 }
396 imgDisp.setImage(sel, orientation);
397
398 Date date = null;
399 try {
400 date = ExifReader.readTime(sel);
401 } catch (Exception e) {
402 Main.warn(e);
403 }
404 if (date != null) {
405 lbExifTime.setText(DateUtils.getDateTimeFormat(DateFormat.SHORT, DateFormat.SHORT).format(date));
406 tfGpsTime.setText(DateUtils.getDateFormat(DateFormat.SHORT).format(date)+" ");
407 tfGpsTime.setEnabled(true);
408 } else {
409 lbExifTime.setText(tr("No date"));
410 tfGpsTime.setText("");
411 tfGpsTime.setEnabled(false);
412 }
413 }
414 });
415 panelLst.add(openButton, BorderLayout.PAGE_END);
416
417 panel.add(panelLst, BorderLayout.LINE_START);
418
419 boolean isOk = false;
420 while (! isOk) {
421 int answer = JOptionPane.showConfirmDialog(
422 Main.parent, panel,
423 tr("Synchronize time from a photo of the GPS receiver"),
424 JOptionPane.OK_CANCEL_OPTION,
425 JOptionPane.QUESTION_MESSAGE
426 );
427 if (answer == JOptionPane.CANCEL_OPTION)
428 return;
429
430 long delta;
431
432 try {
433 delta = dateFormat.parse(lbExifTime.getText()).getTime()
434 - dateFormat.parse(tfGpsTime.getText()).getTime();
435 } catch(ParseException e) {
436 JOptionPane.showMessageDialog(Main.parent, tr("Error while parsing the date.\n"
437 + "Please use the requested format"),
438 tr("Invalid date"), JOptionPane.ERROR_MESSAGE );
439 continue;
440 }
441
442 String selectedTz = (String) cbTimezones.getSelectedItem();
443 int pos = selectedTz.lastIndexOf('(');
444 tzId = selectedTz.substring(0, pos - 1);
445 String tzValue = selectedTz.substring(pos + 1, selectedTz.length() - 1);
446
447 Main.pref.put("geoimage.timezoneid", tzId);
448 tfOffset.setText(Long.toString(delta / 1000));
449 tfTimezone.setText(tzValue);
450
451 isOk = true;
452
453 }
454 statusBarUpdater.updateStatusBar();
455 yLayer.updateBufferAndRepaint();
456 }
457 }
458
459 @Override
460 public void actionPerformed(ActionEvent arg0) {
461 // Construct the list of loaded GPX tracks
462 Collection<Layer> layerLst = Main.map.mapView.getAllLayers();
463 GpxDataWrapper defaultItem = null;
464 for (Layer cur : layerLst) {
465 if (cur instanceof GpxLayer) {
466 GpxLayer curGpx = (GpxLayer) cur;
467 GpxDataWrapper gdw = new GpxDataWrapper(curGpx.getName(), curGpx.data, curGpx.data.storageFile);
468 gpxLst.add(gdw);
469 if (cur == yLayer.gpxLayer) {
470 defaultItem = gdw;
471 }
472 }
473 }
474 for (GpxData data : loadedGpxData) {
475 gpxLst.add(new GpxDataWrapper(data.storageFile.getName(),
476 data,
477 data.storageFile));
478 }
479
480 if (gpxLst.isEmpty()) {
481 gpxLst.add(new GpxDataWrapper(tr("<No GPX track loaded yet>"), null, null));
482 }
483
484 JPanel panelCb = new JPanel();
485
486 panelCb.add(new JLabel(tr("GPX track: ")));
487
488 cbGpx = new JosmComboBox<>(gpxLst.toArray(new GpxDataWrapper[0]));
489 if (defaultItem != null) {
490 cbGpx.setSelectedItem(defaultItem);
491 }
492 cbGpx.addActionListener(statusBarUpdaterWithRepaint);
493 panelCb.add(cbGpx);
494
495 JButton buttonOpen = new JButton(tr("Open another GPX trace"));
496 buttonOpen.addActionListener(new LoadGpxDataActionListener());
497 panelCb.add(buttonOpen);
498
499 JPanel panelTf = new JPanel();
500 panelTf.setLayout(new GridBagLayout());
501
502 String prefTimezone = Main.pref.get("geoimage.timezone", "0:00");
503 if (prefTimezone == null) {
504 prefTimezone = "0:00";
505 }
506 try {
507 timezone = parseTimezone(prefTimezone);
508 } catch (ParseException e) {
509 timezone = 0;
510 }
511
512 tfTimezone = new JosmTextField(10);
513 tfTimezone.setText(formatTimezone(timezone));
514
515 try {
516 delta = parseOffset(Main.pref.get("geoimage.delta", "0"));
517 } catch (ParseException e) {
518 delta = 0;
519 }
520 delta = delta / 1000; // milliseconds -> seconds
521
522 tfOffset = new JosmTextField(10);
523 tfOffset.setText(Long.toString(delta));
524
525 JButton buttonViewGpsPhoto = new JButton(tr("<html>Use photo of an accurate clock,<br>"
526 + "e.g. GPS receiver display</html>"));
527 buttonViewGpsPhoto.setIcon(ImageProvider.get("clock"));
528 buttonViewGpsPhoto.addActionListener(new SetOffsetActionListener());
529
530 JButton buttonAutoGuess = new JButton(tr("Auto-Guess"));
531 buttonAutoGuess.setToolTipText(tr("Matches first photo with first gpx point"));
532 buttonAutoGuess.addActionListener(new AutoGuessActionListener());
533
534 JButton buttonAdjust = new JButton(tr("Manual adjust"));
535 buttonAdjust.addActionListener(new AdjustActionListener());
536
537 JLabel labelPosition = new JLabel(tr("Override position for: "));
538
539 int numAll = getSortedImgList(true, true).size();
540 int numExif = numAll - getSortedImgList(false, true).size();
541 int numTagged = numAll - getSortedImgList(true, false).size();
542
543 cbExifImg = new JCheckBox(tr("Images with geo location in exif data ({0}/{1})", numExif, numAll));
544 cbExifImg.setEnabled(numExif != 0);
545
546 cbTaggedImg = new JCheckBox(tr("Images that are already tagged ({0}/{1})", numTagged, numAll), true);
547 cbTaggedImg.setEnabled(numTagged != 0);
548
549 labelPosition.setEnabled(cbExifImg.isEnabled() || cbTaggedImg.isEnabled());
550
551 boolean ticked = yLayer.thumbsLoaded || Main.pref.getBoolean("geoimage.showThumbs", false);
552 cbShowThumbs = new JCheckBox(tr("Show Thumbnail images on the map"), ticked);
553 cbShowThumbs.setEnabled(!yLayer.thumbsLoaded);
554
555 int y=0;
556 GBC gbc = GBC.eol();
557 gbc.gridx = 0;
558 gbc.gridy = y++;
559 panelTf.add(panelCb, gbc);
560
561 gbc = GBC.eol().fill(GBC.HORIZONTAL).insets(0,0,0,12);
562 gbc.gridx = 0;
563 gbc.gridy = y++;
564 panelTf.add(new JSeparator(SwingConstants.HORIZONTAL), gbc);
565
566 gbc = GBC.std();
567 gbc.gridx = 0;
568 gbc.gridy = y;
569 panelTf.add(new JLabel(tr("Timezone: ")), gbc);
570
571 gbc = GBC.std().fill(GBC.HORIZONTAL);
572 gbc.gridx = 1;
573 gbc.gridy = y++;
574 gbc.weightx = 1.;
575 panelTf.add(tfTimezone, gbc);
576
577 gbc = GBC.std();
578 gbc.gridx = 0;
579 gbc.gridy = y;
580 panelTf.add(new JLabel(tr("Offset:")), gbc);
581
582 gbc = GBC.std().fill(GBC.HORIZONTAL);
583 gbc.gridx = 1;
584 gbc.gridy = y++;
585 gbc.weightx = 1.;
586 panelTf.add(tfOffset, gbc);
587
588 gbc = GBC.std().insets(5,5,5,5);
589 gbc.gridx = 2;
590 gbc.gridy = y-2;
591 gbc.gridheight = 2;
592 gbc.gridwidth = 2;
593 gbc.fill = GridBagConstraints.BOTH;
594 gbc.weightx = 0.5;
595 panelTf.add(buttonViewGpsPhoto, gbc);
596
597 gbc = GBC.std().fill(GBC.BOTH).insets(5,5,5,5);
598 gbc.gridx = 2;
599 gbc.gridy = y++;
600 gbc.weightx = 0.5;
601 panelTf.add(buttonAutoGuess, gbc);
602
603 gbc.gridx = 3;
604 panelTf.add(buttonAdjust, gbc);
605
606 gbc = GBC.eol().fill(GBC.HORIZONTAL).insets(0,12,0,0);
607 gbc.gridx = 0;
608 gbc.gridy = y++;
609 panelTf.add(new JSeparator(SwingConstants.HORIZONTAL), gbc);
610
611 gbc = GBC.eol();
612 gbc.gridx = 0;
613 gbc.gridy = y++;
614 panelTf.add(labelPosition, gbc);
615
616 gbc = GBC.eol();
617 gbc.gridx = 1;
618 gbc.gridy = y++;
619 panelTf.add(cbExifImg, gbc);
620
621 gbc = GBC.eol();
622 gbc.gridx = 1;
623 gbc.gridy = y++;
624 panelTf.add(cbTaggedImg, gbc);
625
626 gbc = GBC.eol();
627 gbc.gridx = 0;
628 gbc.gridy = y++;
629 panelTf.add(cbShowThumbs, gbc);
630
631 final JPanel statusBar = new JPanel();
632 statusBar.setLayout(new FlowLayout(FlowLayout.LEFT, 0, 0));
633 statusBar.setBorder(BorderFactory.createLoweredBevelBorder());
634 statusBarText = new JLabel(" ");
635 statusBarText.setFont(statusBarText.getFont().deriveFont(8));
636 statusBar.add(statusBarText);
637
638 tfTimezone.addFocusListener(repaintTheMap);
639 tfOffset.addFocusListener(repaintTheMap);
640
641 tfTimezone.getDocument().addDocumentListener(statusBarUpdater);
642 tfOffset.getDocument().addDocumentListener(statusBarUpdater);
643 cbExifImg.addItemListener(statusBarUpdaterWithRepaint);
644 cbTaggedImg.addItemListener(statusBarUpdaterWithRepaint);
645
646 statusBarUpdater.updateStatusBar();
647
648 outerPanel = new JPanel();
649 outerPanel.setLayout(new BorderLayout());
650 outerPanel.add(statusBar, BorderLayout.PAGE_END);
651
652 syncDialog = new ExtendedDialog(
653 Main.parent,
654 tr("Correlate images with GPX track"),
655 new String[] { tr("Correlate"), tr("Cancel") },
656 false
657 );
658 syncDialog.setContent(panelTf, false);
659 syncDialog.setButtonIcons(new String[] { "ok.png", "cancel.png" });
660 syncDialog.setupDialog();
661 outerPanel.add(syncDialog.getContentPane(), BorderLayout.PAGE_START);
662 syncDialog.setContentPane(outerPanel);
663 syncDialog.pack();
664 syncDialog.addWindowListener(new WindowAdapter() {
665 static final int CANCEL = -1;
666 static final int DONE = 0;
667 static final int AGAIN = 1;
668 static final int NOTHING = 2;
669 private int checkAndSave() {
670 if (syncDialog.isVisible())
671 // nothing happened: JOSM was minimized or similar
672 return NOTHING;
673 int answer = syncDialog.getValue();
674 if(answer != 1)
675 return CANCEL;
676
677 // Parse values again, to display an error if the format is not recognized
678 try {
679 timezone = parseTimezone(tfTimezone.getText().trim());
680 } catch (ParseException e) {
681 JOptionPane.showMessageDialog(Main.parent, e.getMessage(),
682 tr("Invalid timezone"), JOptionPane.ERROR_MESSAGE);
683 return AGAIN;
684 }
685
686 try {
687 delta = parseOffset(tfOffset.getText().trim());
688 } catch (ParseException e) {
689 JOptionPane.showMessageDialog(Main.parent, e.getMessage(),
690 tr("Invalid offset"), JOptionPane.ERROR_MESSAGE);
691 return AGAIN;
692 }
693
694 if (lastNumMatched == 0 && new ExtendedDialog(
695 Main.parent,
696 tr("Correlate images with GPX track"),
697 new String[] { tr("OK"), tr("Try Again") }).
698 setContent(tr("No images could be matched!")).
699 setButtonIcons(new String[] { "ok.png", "dialogs/refresh.png"}).
700 showDialog().getValue() == 2)
701 return AGAIN;
702 return DONE;
703 }
704
705 @Override
706 public void windowDeactivated(WindowEvent e) {
707 int result = checkAndSave();
708 switch (result) {
709 case NOTHING:
710 break;
711 case CANCEL:
712 if (yLayer != null) {
713 for (ImageEntry ie : yLayer.data) {
714 ie.tmp = null;
715 }
716 yLayer.updateBufferAndRepaint();
717 }
718 break;
719 case AGAIN:
720 actionPerformed(null);
721 break;
722 case DONE:
723 Main.pref.put("geoimage.timezone", formatTimezone(timezone));
724 Main.pref.put("geoimage.delta", Long.toString(delta * 1000));
725 Main.pref.put("geoimage.showThumbs", yLayer.useThumbs);
726
727 yLayer.useThumbs = cbShowThumbs.isSelected();
728 yLayer.loadThumbs();
729
730 // Search whether an other layer has yet defined some bounding box.
731 // If none, we'll zoom to the bounding box of the layer with the photos.
732 boolean boundingBoxedLayerFound = false;
733 for (Layer l: Main.map.mapView.getAllLayers()) {
734 if (l != yLayer) {
735 BoundingXYVisitor bbox = new BoundingXYVisitor();
736 l.visitBoundingBox(bbox);
737 if (bbox.getBounds() != null) {
738 boundingBoxedLayerFound = true;
739 break;
740 }
741 }
742 }
743 if (! boundingBoxedLayerFound) {
744 BoundingXYVisitor bbox = new BoundingXYVisitor();
745 yLayer.visitBoundingBox(bbox);
746 Main.map.mapView.recalculateCenterScale(bbox);
747 }
748
749 for (ImageEntry ie : yLayer.data) {
750 ie.applyTmp();
751 }
752
753 yLayer.updateBufferAndRepaint();
754
755 break;
756 default:
757 throw new IllegalStateException();
758 }
759 }
760 });
761 syncDialog.showDialog();
762 }
763
764 StatusBarUpdater statusBarUpdater = new StatusBarUpdater(false);
765 StatusBarUpdater statusBarUpdaterWithRepaint = new StatusBarUpdater(true);
766
767 private class StatusBarUpdater implements DocumentListener, ItemListener, ActionListener {
768 private boolean doRepaint;
769
770 public StatusBarUpdater(boolean doRepaint) {
771 this.doRepaint = doRepaint;
772 }
773
774 @Override
775 public void insertUpdate(DocumentEvent ev) {
776 updateStatusBar();
777 }
778 @Override
779 public void removeUpdate(DocumentEvent ev) {
780 updateStatusBar();
781 }
782 @Override
783 public void changedUpdate(DocumentEvent ev) {
784 }
785 @Override
786 public void itemStateChanged(ItemEvent e) {
787 updateStatusBar();
788 }
789 @Override
790 public void actionPerformed(ActionEvent e) {
791 updateStatusBar();
792 }
793
794 public void updateStatusBar() {
795 statusBarText.setText(statusText());
796 if (doRepaint) {
797 yLayer.updateBufferAndRepaint();
798 }
799 }
800
801 private String statusText() {
802 try {
803 timezone = parseTimezone(tfTimezone.getText().trim());
804 delta = parseOffset(tfOffset.getText().trim());
805 } catch (ParseException e) {
806 return e.getMessage();
807 }
808
809 // The selection of images we are about to correlate may have changed.
810 // So reset all images.
811 for (ImageEntry ie: yLayer.data) {
812 ie.tmp = null;
813 }
814
815 // Construct a list of images that have a date, and sort them on the date.
816 List<ImageEntry> dateImgLst = getSortedImgList();
817 // Create a temporary copy for each image
818 for (ImageEntry ie : dateImgLst) {
819 ie.cleanTmp();
820 }
821
822 GpxDataWrapper selGpx = selectedGPX(false);
823 if (selGpx == null)
824 return tr("No gpx selected");
825
826 final long offset_ms = ((long) (timezone * 3600) + delta) * 1000; // in milliseconds
827 lastNumMatched = matchGpxTrack(dateImgLst, selGpx.data, offset_ms);
828
829 return trn("<html>Matched <b>{0}</b> of <b>{1}</b> photo to GPX track.</html>",
830 "<html>Matched <b>{0}</b> of <b>{1}</b> photos to GPX track.</html>",
831 dateImgLst.size(), lastNumMatched, dateImgLst.size());
832 }
833 }
834
835 RepaintTheMapListener repaintTheMap = new RepaintTheMapListener();
836 private class RepaintTheMapListener implements FocusListener {
837 @Override
838 public void focusGained(FocusEvent e) { // do nothing
839 }
840
841 @Override
842 public void focusLost(FocusEvent e) {
843 yLayer.updateBufferAndRepaint();
844 }
845 }
846
847 /**
848 * Presents dialog with sliders for manual adjust.
849 */
850 private class AdjustActionListener implements ActionListener {
851
852 @Override
853 public void actionPerformed(ActionEvent arg0) {
854
855 long diff = delta + Math.round(timezone*60*60);
856
857 double diffInH = (double)diff/(60*60); // hours
858
859 // Find day difference
860 final int dayOffset = (int)Math.round(diffInH / 24); // days
861 double tmz = diff - dayOffset*24*60*60L; // seconds
862
863 // In hours, rounded to two decimal places
864 tmz = (double)Math.round(tmz*100/(60*60)) / 100;
865
866 // Due to imprecise clocks we might get a "+3:28" timezone, which should obviously be 3:30 with
867 // -2 minutes offset. This determines the real timezone and finds offset.
868 double fixTimezone = (double)Math.round(tmz * 2)/2; // hours, rounded to one decimal place
869 int offset = (int)Math.round(diff - fixTimezone*60*60) - dayOffset*24*60*60; // seconds
870
871 // Info Labels
872 final JLabel lblMatches = new JLabel();
873
874 // Timezone Slider
875 // The slider allows to switch timezon from -12:00 to 12:00 in 30 minutes
876 // steps. Therefore the range is -24 to 24.
877 final JLabel lblTimezone = new JLabel();
878 final JSlider sldTimezone = new JSlider(-24, 24, 0);
879 sldTimezone.setPaintLabels(true);
880 Dictionary<Integer,JLabel> labelTable = new Hashtable<>();
881 labelTable.put(-24, new JLabel("-12:00"));
882 labelTable.put(-12, new JLabel( "-6:00"));
883 labelTable.put( 0, new JLabel( "0:00"));
884 labelTable.put( 12, new JLabel( "6:00"));
885 labelTable.put( 24, new JLabel( "12:00"));
886 sldTimezone.setLabelTable(labelTable);
887
888 // Minutes Slider
889 final JLabel lblMinutes = new JLabel();
890 final JSlider sldMinutes = new JSlider(-15, 15, 0);
891 sldMinutes.setPaintLabels(true);
892 sldMinutes.setMajorTickSpacing(5);
893
894 // Seconds slider
895 final JLabel lblSeconds = new JLabel();
896 final JSlider sldSeconds = new JSlider(-60, 60, 0);
897 sldSeconds.setPaintLabels(true);
898 sldSeconds.setMajorTickSpacing(30);
899
900 // This is called whenever one of the sliders is moved.
901 // It updates the labels and also calls the "match photos" code
902 class SliderListener implements ChangeListener {
903 @Override
904 public void stateChanged(ChangeEvent e) {
905 // parse slider position into real timezone
906 double tz = Math.abs(sldTimezone.getValue());
907 String zone = tz % 2 == 0
908 ? (int)Math.floor(tz/2) + ":00"
909 : (int)Math.floor(tz/2) + ":30";
910 if(sldTimezone.getValue() < 0) {
911 zone = "-" + zone;
912 }
913
914 lblTimezone.setText(tr("Timezone: {0}", zone));
915 lblMinutes.setText(tr("Minutes: {0}", sldMinutes.getValue()));
916 lblSeconds.setText(tr("Seconds: {0}", sldSeconds.getValue()));
917
918 try {
919 timezone = parseTimezone(zone);
920 } catch (ParseException pe) {
921 throw new RuntimeException(pe);
922 }
923 delta = sldMinutes.getValue()*60 + sldSeconds.getValue();
924
925 tfTimezone.getDocument().removeDocumentListener(statusBarUpdater);
926 tfOffset.getDocument().removeDocumentListener(statusBarUpdater);
927
928 tfTimezone.setText(formatTimezone(timezone));
929 tfOffset.setText(Long.toString(delta + 24*60*60L*dayOffset)); // add the day offset to the offset field
930
931 tfTimezone.getDocument().addDocumentListener(statusBarUpdater);
932 tfOffset.getDocument().addDocumentListener(statusBarUpdater);
933
934 lblMatches.setText(statusBarText.getText() + "<br>" + trn("(Time difference of {0} day)",
935 "Time difference of {0} days", Math.abs(dayOffset), Math.abs(dayOffset)));
936
937 statusBarUpdater.updateStatusBar();
938 yLayer.updateBufferAndRepaint();
939 }
940 }
941
942 // Put everything together
943 JPanel p = new JPanel(new GridBagLayout());
944 p.setPreferredSize(new Dimension(400, 230));
945 p.add(lblMatches, GBC.eol().fill());
946 p.add(lblTimezone, GBC.eol().fill());
947 p.add(sldTimezone, GBC.eol().fill().insets(0, 0, 0, 10));
948 p.add(lblMinutes, GBC.eol().fill());
949 p.add(sldMinutes, GBC.eol().fill().insets(0, 0, 0, 10));
950 p.add(lblSeconds, GBC.eol().fill());
951 p.add(sldSeconds, GBC.eol().fill());
952
953 // If there's an error in the calculation the found values
954 // will be off range for the sliders. Catch this error
955 // and inform the user about it.
956 try {
957 sldTimezone.setValue((int)(fixTimezone*2));
958 sldMinutes.setValue(offset/60);
959 sldSeconds.setValue(offset%60);
960 } catch(Exception e) {
961 JOptionPane.showMessageDialog(Main.parent,
962 tr("An error occurred while trying to match the photos to the GPX track."
963 +" You can adjust the sliders to manually match the photos."),
964 tr("Matching photos to track failed"),
965 JOptionPane.WARNING_MESSAGE);
966 }
967
968 // Call the sliderListener once manually so labels get adjusted
969 new SliderListener().stateChanged(null);
970 // Listeners added here, otherwise it tries to match three times
971 // (when setting the default values)
972 sldTimezone.addChangeListener(new SliderListener());
973 sldMinutes.addChangeListener(new SliderListener());
974 sldSeconds.addChangeListener(new SliderListener());
975
976 // There is no way to cancel this dialog, all changes get applied
977 // immediately. Therefore "Close" is marked with an "OK" icon.
978 // Settings are only saved temporarily to the layer.
979 new ExtendedDialog(Main.parent,
980 tr("Adjust timezone and offset"),
981 new String[] { tr("Close")}).
982 setContent(p).setButtonIcons(new String[] {"ok.png"}).showDialog();
983 }
984 }
985
986 private class AutoGuessActionListener implements ActionListener {
987
988 @Override
989 public void actionPerformed(ActionEvent arg0) {
990 GpxDataWrapper gpxW = selectedGPX(true);
991 if (gpxW == null)
992 return;
993 GpxData gpx = gpxW.data;
994
995 List<ImageEntry> imgs = getSortedImgList();
996 PrimaryDateParser dateParser = new PrimaryDateParser();
997
998 // no images found, exit
999 if(imgs.size() <= 0) {
1000 JOptionPane.showMessageDialog(Main.parent,
1001 tr("The selected photos do not contain time information."),
1002 tr("Photos do not contain time information"), JOptionPane.WARNING_MESSAGE);
1003 return;
1004 }
1005
1006 // Init variables
1007 long firstExifDate = imgs.get(0).getExifTime().getTime()/1000;
1008
1009 long firstGPXDate = -1;
1010 // Finds first GPX point
1011 outer: for (GpxTrack trk : gpx.tracks) {
1012 for (GpxTrackSegment segment : trk.getSegments()) {
1013 for (WayPoint curWp : segment.getWayPoints()) {
1014 String curDateWpStr = (String) curWp.attr.get("time");
1015 if (curDateWpStr == null) {
1016 continue;
1017 }
1018
1019 try {
1020 firstGPXDate = dateParser.parse(curDateWpStr).getTime()/1000;
1021 break outer;
1022 } catch(Exception e) {
1023 Main.warn(e);
1024 }
1025 }
1026 }
1027 }
1028
1029 // No GPX timestamps found, exit
1030 if(firstGPXDate < 0) {
1031 JOptionPane.showMessageDialog(Main.parent,
1032 tr("The selected GPX track does not contain timestamps. Please select another one."),
1033 tr("GPX Track has no time information"), JOptionPane.WARNING_MESSAGE);
1034 return;
1035 }
1036
1037 // seconds
1038 long diff = firstExifDate - firstGPXDate;
1039
1040 double diffInH = (double)diff/(60*60); // hours
1041
1042 // Find day difference
1043 int dayOffset = (int)Math.round(diffInH / 24); // days
1044 double tz = diff - dayOffset*24*60*60L; // seconds
1045
1046 // In hours, rounded to two decimal places
1047 tz = (double)Math.round(tz*100/(60*60)) / 100;
1048
1049 // Due to imprecise clocks we might get a "+3:28" timezone, which should obviously be 3:30 with
1050 // -2 minutes offset. This determines the real timezone and finds offset.
1051 timezone = (double)Math.round(tz * 2)/2; // hours, rounded to one decimal place
1052 delta = Math.round(diff - timezone*60*60); // seconds
1053
1054 tfTimezone.getDocument().removeDocumentListener(statusBarUpdater);
1055 tfOffset.getDocument().removeDocumentListener(statusBarUpdater);
1056
1057 tfTimezone.setText(formatTimezone(timezone));
1058 tfOffset.setText(Long.toString(delta));
1059 tfOffset.requestFocus();
1060
1061 tfTimezone.getDocument().addDocumentListener(statusBarUpdater);
1062 tfOffset.getDocument().addDocumentListener(statusBarUpdater);
1063
1064 statusBarUpdater.updateStatusBar();
1065 yLayer.updateBufferAndRepaint();
1066 }
1067 }
1068
1069 private List<ImageEntry> getSortedImgList() {
1070 return getSortedImgList(cbExifImg.isSelected(), cbTaggedImg.isSelected());
1071 }
1072
1073 /**
1074 * Returns a list of images that fulfill the given criteria.
1075 * Default setting is to return untagged images, but may be overwritten.
1076 * @param exif also returns images with exif-gps info
1077 * @param tagged also returns tagged images
1078 * @return matching images
1079 */
1080 private List<ImageEntry> getSortedImgList(boolean exif, boolean tagged) {
1081 List<ImageEntry> dateImgLst = new ArrayList<>(yLayer.data.size());
1082 for (ImageEntry e : yLayer.data) {
1083 if (!e.hasExifTime()) {
1084 continue;
1085 }
1086
1087 if (e.getExifCoor() != null && !exif) {
1088 continue;
1089 }
1090
1091 if (e.isTagged() && e.getExifCoor() == null && !tagged) {
1092 continue;
1093 }
1094
1095 dateImgLst.add(e);
1096 }
1097
1098 Collections.sort(dateImgLst, new Comparator<ImageEntry>() {
1099 @Override
1100 public int compare(ImageEntry arg0, ImageEntry arg1) {
1101 return arg0.getExifTime().compareTo(arg1.getExifTime());
1102 }
1103 });
1104
1105 return dateImgLst;
1106 }
1107
1108 private GpxDataWrapper selectedGPX(boolean complain) {
1109 Object item = cbGpx.getSelectedItem();
1110
1111 if (item == null || ((GpxDataWrapper) item).file == null) {
1112 if (complain) {
1113 JOptionPane.showMessageDialog(Main.parent, tr("You should select a GPX track"),
1114 tr("No selected GPX track"), JOptionPane.ERROR_MESSAGE );
1115 }
1116 return null;
1117 }
1118 return (GpxDataWrapper) item;
1119 }
1120
1121 /**
1122 * Match a list of photos to a gpx track with a given offset.
1123 * All images need a exifTime attribute and the List must be sorted according to these times.
1124 */
1125 private int matchGpxTrack(List<ImageEntry> images, GpxData selectedGpx, long offset) {
1126 int ret = 0;
1127
1128 PrimaryDateParser dateParser = new PrimaryDateParser();
1129
1130 for (GpxTrack trk : selectedGpx.tracks) {
1131 for (GpxTrackSegment segment : trk.getSegments()) {
1132
1133 long prevWpTime = 0;
1134 WayPoint prevWp = null;
1135
1136 for (WayPoint curWp : segment.getWayPoints()) {
1137
1138 String curWpTimeStr = (String) curWp.attr.get("time");
1139 if (curWpTimeStr != null) {
1140
1141 try {
1142 long curWpTime = dateParser.parse(curWpTimeStr).getTime() + offset;
1143 ret += matchPoints(images, prevWp, prevWpTime, curWp, curWpTime, offset);
1144
1145 prevWp = curWp;
1146 prevWpTime = curWpTime;
1147
1148 } catch(ParseException e) {
1149 Main.error("Error while parsing date \"" + curWpTimeStr + '"');
1150 Main.error(e);
1151 prevWp = null;
1152 prevWpTime = 0;
1153 }
1154 } else {
1155 prevWp = null;
1156 prevWpTime = 0;
1157 }
1158 }
1159 }
1160 }
1161 return ret;
1162 }
1163
1164 private static Double getElevation(WayPoint wp) {
1165 String value = (String) wp.attr.get("ele");
1166 if (value != null) {
1167 try {
1168 return new Double(value);
1169 } catch (NumberFormatException e) {
1170 Main.warn(e);
1171 }
1172 }
1173 return null;
1174 }
1175
1176 private int matchPoints(List<ImageEntry> images, WayPoint prevWp, long prevWpTime,
1177 WayPoint curWp, long curWpTime, long offset) {
1178 // Time between the track point and the previous one, 5 sec if first point, i.e. photos take
1179 // 5 sec before the first track point can be assumed to be take at the starting position
1180 long interval = prevWpTime > 0 ? (Math.abs(curWpTime - prevWpTime)) : 5*1000;
1181 int ret = 0;
1182
1183 // i is the index of the timewise last photo that has the same or earlier EXIF time
1184 int i = getLastIndexOfListBefore(images, curWpTime);
1185
1186 // no photos match
1187 if (i < 0)
1188 return 0;
1189
1190 Double speed = null;
1191 Double prevElevation = null;
1192
1193 if (prevWp != null) {
1194 double distance = prevWp.getCoor().greatCircleDistance(curWp.getCoor());
1195 // This is in km/h, 3.6 * m/s
1196 if (curWpTime > prevWpTime) {
1197 speed = 3600 * distance / (curWpTime - prevWpTime);
1198 }
1199 prevElevation = getElevation(prevWp);
1200 }
1201
1202 Double curElevation = getElevation(curWp);
1203
1204 // First trackpoint, then interval is set to five seconds, i.e. photos up to five seconds
1205 // before the first point will be geotagged with the starting point
1206 if (prevWpTime == 0 || curWpTime <= prevWpTime) {
1207 while (true) {
1208 if (i < 0) {
1209 break;
1210 }
1211 final ImageEntry curImg = images.get(i);
1212 long time = curImg.getExifTime().getTime();
1213 if (time > curWpTime || time < curWpTime - interval) {
1214 break;
1215 }
1216 if (curImg.tmp.getPos() == null) {
1217 curImg.tmp.setPos(curWp.getCoor());
1218 curImg.tmp.setSpeed(speed);
1219 curImg.tmp.setElevation(curElevation);
1220 curImg.tmp.setGpsTime(new Date(curImg.getExifTime().getTime() - offset));
1221 curImg.flagNewGpsData();
1222 ret++;
1223 }
1224 i--;
1225 }
1226 return ret;
1227 }
1228
1229 // This code gives a simple linear interpolation of the coordinates between current and
1230 // previous track point assuming a constant speed in between
1231 while (true) {
1232 if (i < 0) {
1233 break;
1234 }
1235 ImageEntry curImg = images.get(i);
1236 long imgTime = curImg.getExifTime().getTime();
1237 if (imgTime < prevWpTime) {
1238 break;
1239 }
1240
1241 if (curImg.tmp.getPos() == null && prevWp != null) {
1242 // The values of timeDiff are between 0 and 1, it is not seconds but a dimensionless variable
1243 double timeDiff = (double)(imgTime - prevWpTime) / interval;
1244 curImg.tmp.setPos(prevWp.getCoor().interpolate(curWp.getCoor(), timeDiff));
1245 curImg.tmp.setSpeed(speed);
1246 if (curElevation != null && prevElevation != null) {
1247 curImg.tmp.setElevation(prevElevation + (curElevation - prevElevation) * timeDiff);
1248 }
1249 curImg.tmp.setGpsTime(new Date(curImg.getExifTime().getTime() - offset));
1250 curImg.flagNewGpsData();
1251
1252 ret++;
1253 }
1254 i--;
1255 }
1256 return ret;
1257 }
1258
1259 private int getLastIndexOfListBefore(List<ImageEntry> images, long searchedTime) {
1260 int lstSize= images.size();
1261
1262 // No photos or the first photo taken is later than the search period
1263 if(lstSize == 0 || searchedTime < images.get(0).getExifTime().getTime())
1264 return -1;
1265
1266 // The search period is later than the last photo
1267 if (searchedTime > images.get(lstSize - 1).getExifTime().getTime())
1268 return lstSize-1;
1269
1270 // The searched index is somewhere in the middle, do a binary search from the beginning
1271 int curIndex= 0;
1272 int startIndex= 0;
1273 int endIndex= lstSize-1;
1274 while (endIndex - startIndex > 1) {
1275 curIndex= (endIndex + startIndex) / 2;
1276 if (searchedTime > images.get(curIndex).getExifTime().getTime()) {
1277 startIndex= curIndex;
1278 } else {
1279 endIndex= curIndex;
1280 }
1281 }
1282 if (searchedTime < images.get(endIndex).getExifTime().getTime())
1283 return startIndex;
1284
1285 // This final loop is to check if photos with the exact same EXIF time follows
1286 while ((endIndex < (lstSize-1)) && (images.get(endIndex).getExifTime().getTime()
1287 == images.get(endIndex + 1).getExifTime().getTime())) {
1288 endIndex++;
1289 }
1290 return endIndex;
1291 }
1292
1293 private String formatTimezone(double timezone) {
1294 StringBuilder ret = new StringBuilder();
1295
1296 if (timezone < 0) {
1297 ret.append('-');
1298 timezone = -timezone;
1299 } else {
1300 ret.append('+');
1301 }
1302 ret.append((long) timezone).append(':');
1303 int minutes = (int) ((timezone % 1) * 60);
1304 if (minutes < 10) {
1305 ret.append('0');
1306 }
1307 ret.append(minutes);
1308
1309 return ret.toString();
1310 }
1311
1312 private double parseTimezone(String timezone) throws ParseException {
1313
1314 String error = tr("Error while parsing timezone.\nExpected format: {0}", "+H:MM");
1315
1316 if (timezone.length() == 0)
1317 return 0;
1318
1319 char sgnTimezone = '+';
1320 StringBuilder hTimezone = new StringBuilder();
1321 StringBuilder mTimezone = new StringBuilder();
1322 int state = 1; // 1=start/sign, 2=hours, 3=minutes.
1323 for (int i = 0; i < timezone.length(); i++) {
1324 char c = timezone.charAt(i);
1325 switch (c) {
1326 case ' ' :
1327 if (state != 2 || hTimezone.length() != 0)
1328 throw new ParseException(error,0);
1329 break;
1330 case '+' :
1331 case '-' :
1332 if (state == 1) {
1333 sgnTimezone = c;
1334 state = 2;
1335 } else
1336 throw new ParseException(error,0);
1337 break;
1338 case ':' :
1339 case '.' :
1340 if (state == 2) {
1341 state = 3;
1342 } else
1343 throw new ParseException(error,0);
1344 break;
1345 case '0' : case '1' : case '2' : case '3' : case '4' :
1346 case '5' : case '6' : case '7' : case '8' : case '9' :
1347 switch(state) {
1348 case 1 :
1349 case 2 :
1350 state = 2;
1351 hTimezone.append(c);
1352 break;
1353 case 3 :
1354 mTimezone.append(c);
1355 break;
1356 default :
1357 throw new ParseException(error,0);
1358 }
1359 break;
1360 default :
1361 throw new ParseException(error,0);
1362 }
1363 }
1364
1365 int h = 0;
1366 int m = 0;
1367 try {
1368 h = Integer.parseInt(hTimezone.toString());
1369 if (mTimezone.length() > 0) {
1370 m = Integer.parseInt(mTimezone.toString());
1371 }
1372 } catch (NumberFormatException nfe) {
1373 // Invalid timezone
1374 throw new ParseException(error,0);
1375 }
1376
1377 if (h > 12 || m > 59 )
1378 throw new ParseException(error,0);
1379 else
1380 return (h + m / 60.0) * (sgnTimezone == '-' ? -1 : 1);
1381 }
1382
1383 private long parseOffset(String offset) throws ParseException {
1384 String error = tr("Error while parsing offset.\nExpected format: {0}", "number");
1385
1386 if (offset.length() > 0) {
1387 try {
1388 if(offset.startsWith("+")) {
1389 offset = offset.substring(1);
1390 }
1391 return Long.parseLong(offset);
1392 } catch(NumberFormatException nfe) {
1393 throw new ParseException(error,0);
1394 }
1395 } else
1396 return 0;
1397 }
1398}
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