source: josm/trunk/src/org/openstreetmap/josm/gui/history/HistoryBrowserModel.java@ 10053

Last change on this file since 10053 was 9942, checked in by Don-vip, 8 years ago

fix problems seen in unit tests when launched manually from Eclipse
  • Property svn:eol-style set to native
File size: 29.8 KB
Line 
1// License: GPL. For details, see LICENSE file.
2package org.openstreetmap.josm.gui.history;
3
4import static org.openstreetmap.josm.tools.I18n.tr;
5
6import java.text.DateFormat;
7import java.util.ArrayList;
8import java.util.Collections;
9import java.util.HashSet;
10import java.util.List;
11import java.util.Observable;
12import java.util.Set;
13
14import javax.swing.JTable;
15import javax.swing.table.AbstractTableModel;
16import javax.swing.table.TableModel;
17
18import org.openstreetmap.josm.Main;
19import org.openstreetmap.josm.data.osm.Node;
20import org.openstreetmap.josm.data.osm.OsmPrimitive;
21import org.openstreetmap.josm.data.osm.OsmPrimitiveType;
22import org.openstreetmap.josm.data.osm.Relation;
23import org.openstreetmap.josm.data.osm.RelationMember;
24import org.openstreetmap.josm.data.osm.RelationMemberData;
25import org.openstreetmap.josm.data.osm.User;
26import org.openstreetmap.josm.data.osm.UserInfo;
27import org.openstreetmap.josm.data.osm.Way;
28import org.openstreetmap.josm.data.osm.event.AbstractDatasetChangedEvent;
29import org.openstreetmap.josm.data.osm.event.DataChangedEvent;
30import org.openstreetmap.josm.data.osm.event.DataSetListener;
31import org.openstreetmap.josm.data.osm.event.NodeMovedEvent;
32import org.openstreetmap.josm.data.osm.event.PrimitivesAddedEvent;
33import org.openstreetmap.josm.data.osm.event.PrimitivesRemovedEvent;
34import org.openstreetmap.josm.data.osm.event.RelationMembersChangedEvent;
35import org.openstreetmap.josm.data.osm.event.TagsChangedEvent;
36import org.openstreetmap.josm.data.osm.event.WayNodesChangedEvent;
37import org.openstreetmap.josm.data.osm.history.History;
38import org.openstreetmap.josm.data.osm.history.HistoryNode;
39import org.openstreetmap.josm.data.osm.history.HistoryOsmPrimitive;
40import org.openstreetmap.josm.data.osm.history.HistoryRelation;
41import org.openstreetmap.josm.data.osm.history.HistoryWay;
42import org.openstreetmap.josm.data.osm.visitor.AbstractVisitor;
43import org.openstreetmap.josm.gui.JosmUserIdentityManager;
44import org.openstreetmap.josm.gui.MapView;
45import org.openstreetmap.josm.gui.MapView.LayerChangeListener;
46import org.openstreetmap.josm.gui.layer.Layer;
47import org.openstreetmap.josm.gui.layer.OsmDataLayer;
48import org.openstreetmap.josm.tools.CheckParameterUtil;
49import org.openstreetmap.josm.tools.date.DateUtils;
50
51/**
52 * This is the model used by the history browser.
53 *
54 * The model state consists of the following elements:
55 * <ul>
56 * <li>the {@link History} of a specific {@link OsmPrimitive}</li>
57 * <li>a dedicated version in this {@link History} called the {@link PointInTimeType#REFERENCE_POINT_IN_TIME}</li>
58 * <li>another version in this {@link History} called the {@link PointInTimeType#CURRENT_POINT_IN_TIME}</li>
59 * </ul>
60 * {@link HistoryBrowser} always compares the {@link PointInTimeType#REFERENCE_POINT_IN_TIME} with the
61 * {@link PointInTimeType#CURRENT_POINT_IN_TIME}.
62
63 * This model provides various {@link TableModel}s for {@link JTable}s used in {@link HistoryBrowser}, for
64 * instance:
65 * <ul>
66 * <li>{@link #getTagTableModel(PointInTimeType)} replies a {@link TableModel} for the tags of either of
67 * the two selected versions</li>
68 * <li>{@link #getNodeListTableModel(PointInTimeType)} replies a {@link TableModel} for the list of nodes of
69 * the two selected versions (if the current history provides information about a {@link Way}</li>
70 * <li> {@link #getRelationMemberTableModel(PointInTimeType)} replies a {@link TableModel} for the list of relation
71 * members of the two selected versions (if the current history provides information about a {@link Relation}</li>
72 * </ul>
73 *
74 * @see HistoryBrowser
75 */
76public class HistoryBrowserModel extends Observable implements LayerChangeListener, DataSetListener {
77 /** the history of an OsmPrimitive */
78 private History history;
79 private HistoryOsmPrimitive reference;
80 private HistoryOsmPrimitive current;
81 /**
82 * latest isn't a reference of history. It's a clone of the currently edited
83 * {@link OsmPrimitive} in the current edit layer.
84 */
85 private HistoryOsmPrimitive latest;
86
87 private final VersionTableModel versionTableModel;
88 private final TagTableModel currentTagTableModel;
89 private final TagTableModel referenceTagTableModel;
90 private final DiffTableModel currentRelationMemberTableModel;
91 private final DiffTableModel referenceRelationMemberTableModel;
92 private final DiffTableModel referenceNodeListTableModel;
93 private final DiffTableModel currentNodeListTableModel;
94
95 /**
96 * constructor
97 */
98 public HistoryBrowserModel() {
99 versionTableModel = new VersionTableModel();
100 currentTagTableModel = new TagTableModel(PointInTimeType.CURRENT_POINT_IN_TIME);
101 referenceTagTableModel = new TagTableModel(PointInTimeType.REFERENCE_POINT_IN_TIME);
102 referenceNodeListTableModel = new DiffTableModel();
103 currentNodeListTableModel = new DiffTableModel();
104 currentRelationMemberTableModel = new DiffTableModel();
105 referenceRelationMemberTableModel = new DiffTableModel();
106
107 if (Main.main != null) {
108 OsmDataLayer editLayer = Main.main.getEditLayer();
109 if (editLayer != null) {
110 editLayer.data.addDataSetListener(this);
111 }
112 }
113 MapView.addLayerChangeListener(this);
114 }
115
116 /**
117 * Creates a new history browser model for a given history.
118 *
119 * @param history the history. Must not be null.
120 * @throws IllegalArgumentException if history is null
121 */
122 public HistoryBrowserModel(History history) {
123 this();
124 CheckParameterUtil.ensureParameterNotNull(history, "history");
125 setHistory(history);
126 }
127
128 /**
129 * replies the history managed by this model
130 * @return the history
131 */
132 public History getHistory() {
133 return history;
134 }
135
136 protected boolean canShowAsLatest(OsmPrimitive primitive) {
137 if (primitive == null) return false;
138 if (primitive.isNew() || !primitive.isUsable()) return false;
139
140 //try creating a history primitive. if that fails, the primitive cannot be used.
141 try {
142 HistoryOsmPrimitive.forOsmPrimitive(primitive);
143 } catch (Exception ign) {
144 return false;
145 }
146
147 if (history == null) return false;
148 // only show latest of the same version if it is modified
149 if (history.getByVersion(primitive.getVersion()) != null)
150 return primitive.isModified();
151
152 // if latest version from history is higher than a non existing primitive version,
153 // that means this version has been redacted and the primitive cannot be used.
154 if (history.getLatest().getVersion() > primitive.getVersion())
155 return false;
156
157 // latest has a higher version than one of the primitives
158 // in the history (probably because the history got out of sync
159 // with uploaded data) -> show the primitive as latest
160 return true;
161 }
162
163 /**
164 * sets the history to be managed by this model
165 *
166 * @param history the history
167 *
168 */
169 public void setHistory(History history) {
170 this.history = history;
171 if (history.getNumVersions() > 0) {
172 HistoryOsmPrimitive newLatest = null;
173 OsmDataLayer editLayer = Main.main.getEditLayer();
174 if (editLayer != null) {
175 OsmPrimitive p = editLayer.data.getPrimitiveById(history.getId(), history.getType());
176 if (canShowAsLatest(p)) {
177 newLatest = new HistoryPrimitiveBuilder().build(p);
178 }
179 }
180 if (newLatest == null) {
181 current = history.getLatest();
182 int prevIndex = history.getNumVersions() - 2;
183 reference = prevIndex < 0 ? history.getEarliest() : history.get(prevIndex);
184 } else {
185 reference = history.getLatest();
186 current = newLatest;
187 }
188 setLatest(newLatest);
189 }
190 initTagTableModels();
191 fireModelChange();
192 }
193
194 protected void fireModelChange() {
195 initNodeListTableModels();
196 initMemberListTableModels();
197 setChanged();
198 notifyObservers();
199 versionTableModel.fireTableDataChanged();
200 }
201
202 /**
203 * Replies the table model to be used in a {@link JTable} which
204 * shows the list of versions in this history.
205 *
206 * @return the table model
207 */
208 public VersionTableModel getVersionTableModel() {
209 return versionTableModel;
210 }
211
212 protected void initTagTableModels() {
213 currentTagTableModel.initKeyList();
214 referenceTagTableModel.initKeyList();
215 }
216
217 /**
218 * Should be called everytime either reference of current changes to update the diff.
219 * TODO: Maybe rename to reflect this? eg. updateNodeListTableModels
220 */
221 protected void initNodeListTableModels() {
222 if (current == null || current.getType() != OsmPrimitiveType.WAY
223 || reference == null || reference.getType() != OsmPrimitiveType.WAY)
224 return;
225 TwoColumnDiff diff = new TwoColumnDiff(
226 ((HistoryWay) reference).getNodes().toArray(),
227 ((HistoryWay) current).getNodes().toArray());
228 referenceNodeListTableModel.setRows(diff.referenceDiff, diff.referenceReversed);
229 currentNodeListTableModel.setRows(diff.currentDiff, false);
230 }
231
232 protected void initMemberListTableModels() {
233 if (current == null || current.getType() != OsmPrimitiveType.RELATION
234 || reference == null || reference.getType() != OsmPrimitiveType.RELATION)
235 return;
236 TwoColumnDiff diff = new TwoColumnDiff(
237 ((HistoryRelation) reference).getMembers().toArray(),
238 ((HistoryRelation) current).getMembers().toArray());
239 referenceRelationMemberTableModel.setRows(diff.referenceDiff, diff.referenceReversed);
240 currentRelationMemberTableModel.setRows(diff.currentDiff, false);
241 }
242
243 /**
244 * replies the tag table model for the respective point in time
245 *
246 * @param pointInTimeType the type of the point in time (must not be null)
247 * @return the tag table model
248 * @throws IllegalArgumentException if pointInTimeType is null
249 */
250 public TagTableModel getTagTableModel(PointInTimeType pointInTimeType) {
251 CheckParameterUtil.ensureParameterNotNull(pointInTimeType, "pointInTimeType");
252 if (pointInTimeType.equals(PointInTimeType.CURRENT_POINT_IN_TIME))
253 return currentTagTableModel;
254 else if (pointInTimeType.equals(PointInTimeType.REFERENCE_POINT_IN_TIME))
255 return referenceTagTableModel;
256
257 // should not happen
258 return null;
259 }
260
261 public DiffTableModel getNodeListTableModel(PointInTimeType pointInTimeType) {
262 CheckParameterUtil.ensureParameterNotNull(pointInTimeType, "pointInTimeType");
263 if (pointInTimeType.equals(PointInTimeType.CURRENT_POINT_IN_TIME))
264 return currentNodeListTableModel;
265 else if (pointInTimeType.equals(PointInTimeType.REFERENCE_POINT_IN_TIME))
266 return referenceNodeListTableModel;
267
268 // should not happen
269 return null;
270 }
271
272 public DiffTableModel getRelationMemberTableModel(PointInTimeType pointInTimeType) {
273 CheckParameterUtil.ensureParameterNotNull(pointInTimeType, "pointInTimeType");
274 if (pointInTimeType.equals(PointInTimeType.CURRENT_POINT_IN_TIME))
275 return currentRelationMemberTableModel;
276 else if (pointInTimeType.equals(PointInTimeType.REFERENCE_POINT_IN_TIME))
277 return referenceRelationMemberTableModel;
278
279 // should not happen
280 return null;
281 }
282
283 /**
284 * Sets the {@link HistoryOsmPrimitive} which plays the role of a reference point
285 * in time (see {@link PointInTimeType}).
286 *
287 * @param reference the reference history primitive. Must not be null.
288 * @throws IllegalArgumentException if reference is null
289 * @throws IllegalStateException if this model isn't a assigned a history yet
290 * @throws IllegalArgumentException if reference isn't an history primitive for the history managed by this mode
291 *
292 * @see #setHistory(History)
293 * @see PointInTimeType
294 */
295 public void setReferencePointInTime(HistoryOsmPrimitive reference) {
296 CheckParameterUtil.ensureParameterNotNull(reference, "reference");
297 if (history == null)
298 throw new IllegalStateException(tr("History not initialized yet. Failed to set reference primitive."));
299 if (reference.getId() != history.getId())
300 throw new IllegalArgumentException(
301 tr("Failed to set reference. Reference ID {0} does not match history ID {1}.", reference.getId(), history.getId()));
302 HistoryOsmPrimitive primitive = history.getByVersion(reference.getVersion());
303 if (primitive == null)
304 throw new IllegalArgumentException(
305 tr("Failed to set reference. Reference version {0} not available in history.", reference.getVersion()));
306
307 this.reference = reference;
308 initTagTableModels();
309 initNodeListTableModels();
310 initMemberListTableModels();
311 setChanged();
312 notifyObservers();
313 }
314
315 /**
316 * Sets the {@link HistoryOsmPrimitive} which plays the role of the current point
317 * in time (see {@link PointInTimeType}).
318 *
319 * @param current the reference history primitive. Must not be {@code null}.
320 * @throws IllegalArgumentException if reference is {@code null}
321 * @throws IllegalStateException if this model isn't a assigned a history yet
322 * @throws IllegalArgumentException if reference isn't an history primitive for the history managed by this mode
323 *
324 * @see #setHistory(History)
325 * @see PointInTimeType
326 */
327 public void setCurrentPointInTime(HistoryOsmPrimitive current) {
328 CheckParameterUtil.ensureParameterNotNull(current, "current");
329 if (history == null)
330 throw new IllegalStateException(tr("History not initialized yet. Failed to set current primitive."));
331 if (current.getId() != history.getId())
332 throw new IllegalArgumentException(
333 tr("Failed to set reference. Reference ID {0} does not match history ID {1}.", current.getId(), history.getId()));
334 HistoryOsmPrimitive primitive = history.getByVersion(current.getVersion());
335 if (primitive == null)
336 throw new IllegalArgumentException(
337 tr("Failed to set current primitive. Current version {0} not available in history.", current.getVersion()));
338 this.current = current;
339 initTagTableModels();
340 initNodeListTableModels();
341 initMemberListTableModels();
342 setChanged();
343 notifyObservers();
344 }
345
346 /**
347 * Replies the history OSM primitive for the {@link PointInTimeType#CURRENT_POINT_IN_TIME}
348 *
349 * @return the history OSM primitive for the {@link PointInTimeType#CURRENT_POINT_IN_TIME} (may be null)
350 */
351 public HistoryOsmPrimitive getCurrentPointInTime() {
352 return getPointInTime(PointInTimeType.CURRENT_POINT_IN_TIME);
353 }
354
355 /**
356 * Replies the history OSM primitive for the {@link PointInTimeType#REFERENCE_POINT_IN_TIME}
357 *
358 * @return the history OSM primitive for the {@link PointInTimeType#REFERENCE_POINT_IN_TIME} (may be null)
359 */
360 public HistoryOsmPrimitive getReferencePointInTime() {
361 return getPointInTime(PointInTimeType.REFERENCE_POINT_IN_TIME);
362 }
363
364 /**
365 * replies the history OSM primitive for a given point in time
366 *
367 * @param type the type of the point in time (must not be null)
368 * @return the respective primitive. Can be null.
369 * @throws IllegalArgumentException if type is null
370 */
371 public HistoryOsmPrimitive getPointInTime(PointInTimeType type) {
372 CheckParameterUtil.ensureParameterNotNull(type, "type");
373 if (type.equals(PointInTimeType.CURRENT_POINT_IN_TIME))
374 return current;
375 else if (type.equals(PointInTimeType.REFERENCE_POINT_IN_TIME))
376 return reference;
377
378 // should not happen
379 return null;
380 }
381
382 /**
383 * Returns true if <code>primitive</code> is the latest primitive
384 * representing the version currently edited in the current data
385 * layer.
386 *
387 * @param primitive the primitive to check
388 * @return true if <code>primitive</code> is the latest primitive
389 */
390 public boolean isLatest(HistoryOsmPrimitive primitive) {
391 if (primitive == null) return false;
392 return primitive == latest;
393 }
394
395 /**
396 * The table model for the list of versions in the current history
397 *
398 */
399 public final class VersionTableModel extends AbstractTableModel {
400
401 private VersionTableModel() {
402 }
403
404 @Override
405 public int getRowCount() {
406 if (history == null)
407 return 0;
408 int ret = history.getNumVersions();
409 if (latest != null) {
410 ret++;
411 }
412 return ret;
413 }
414
415 @Override
416 public Object getValueAt(int row, int column) {
417 switch (column) {
418 case 0:
419 return Long.toString(getPrimitive(row).getVersion());
420 case 1:
421 return isReferencePointInTime(row);
422 case 2:
423 return isCurrentPointInTime(row);
424 case 3:
425 HistoryOsmPrimitive p3 = getPrimitive(row);
426 if (p3 != null && p3.getTimestamp() != null)
427 return DateUtils.formatDateTime(p3.getTimestamp(), DateFormat.SHORT, DateFormat.SHORT);
428 return null;
429 case 4:
430 HistoryOsmPrimitive p4 = getPrimitive(row);
431 if (p4 != null) {
432 User user = p4.getUser();
433 if (user != null)
434 return user.getName();
435 }
436 return null;
437 }
438 return null;
439 }
440
441 @Override
442 public void setValueAt(Object aValue, int row, int column) {
443 if (!((Boolean) aValue)) return;
444 switch (column) {
445 case 1:
446 setReferencePointInTime(row);
447 break;
448 case 2:
449 setCurrentPointInTime(row);
450 break;
451 default:
452 return;
453 }
454 fireTableDataChanged();
455 }
456
457 @Override
458 public boolean isCellEditable(int row, int column) {
459 return column >= 1 && column <= 2;
460 }
461
462 public void setReferencePointInTime(int row) {
463 if (history == null) return;
464 if (row == history.getNumVersions()) {
465 if (latest != null) {
466 HistoryBrowserModel.this.setReferencePointInTime(latest);
467 }
468 return;
469 }
470 if (row < 0 || row > history.getNumVersions()) return;
471 HistoryOsmPrimitive reference = history.get(row);
472 HistoryBrowserModel.this.setReferencePointInTime(reference);
473 }
474
475 public void setCurrentPointInTime(int row) {
476 if (history == null) return;
477 if (row == history.getNumVersions()) {
478 if (latest != null) {
479 HistoryBrowserModel.this.setCurrentPointInTime(latest);
480 }
481 return;
482 }
483 if (row < 0 || row > history.getNumVersions()) return;
484 HistoryOsmPrimitive current = history.get(row);
485 HistoryBrowserModel.this.setCurrentPointInTime(current);
486 }
487
488 public boolean isReferencePointInTime(int row) {
489 if (history == null) return false;
490 if (row == history.getNumVersions())
491 return latest == reference;
492 if (row < 0 || row > history.getNumVersions()) return false;
493 HistoryOsmPrimitive p = history.get(row);
494 return p == reference;
495 }
496
497 public boolean isCurrentPointInTime(int row) {
498 if (history == null) return false;
499 if (row == history.getNumVersions())
500 return latest == current;
501 if (row < 0 || row > history.getNumVersions()) return false;
502 HistoryOsmPrimitive p = history.get(row);
503 return p == current;
504 }
505
506 public HistoryOsmPrimitive getPrimitive(int row) {
507 if (history == null)
508 return null;
509 return isLatest(row) ? latest : history.get(row);
510 }
511
512 public boolean isLatest(int row) {
513 return row >= history.getNumVersions();
514 }
515
516 public OsmPrimitive getLatest() {
517 if (latest == null) return null;
518 OsmDataLayer editLayer = Main.main.getEditLayer();
519 if (editLayer == null) return null;
520 return editLayer.data.getPrimitiveById(latest.getId(), latest.getType());
521 }
522
523 @Override
524 public int getColumnCount() {
525 return 6;
526 }
527 }
528
529 /**
530 * The table model for the tags of the version at {@link PointInTimeType#REFERENCE_POINT_IN_TIME}
531 * or {@link PointInTimeType#CURRENT_POINT_IN_TIME}
532 *
533 */
534 public class TagTableModel extends AbstractTableModel {
535
536 private List<String> keys;
537 private final PointInTimeType pointInTimeType;
538
539 protected void initKeyList() {
540 Set<String> keySet = new HashSet<>();
541 if (current != null) {
542 keySet.addAll(current.getTags().keySet());
543 }
544 if (reference != null) {
545 keySet.addAll(reference.getTags().keySet());
546 }
547 keys = new ArrayList<>(keySet);
548 Collections.sort(keys);
549 fireTableDataChanged();
550 }
551
552 protected TagTableModel(PointInTimeType type) {
553 pointInTimeType = type;
554 initKeyList();
555 }
556
557 @Override
558 public int getRowCount() {
559 if (keys == null) return 0;
560 return keys.size();
561 }
562
563 @Override
564 public Object getValueAt(int row, int column) {
565 return keys.get(row);
566 }
567
568 public boolean hasTag(String key) {
569 HistoryOsmPrimitive primitive = getPointInTime(pointInTimeType);
570 if (primitive == null)
571 return false;
572 return primitive.hasTag(key);
573 }
574
575 public String getValue(String key) {
576 HistoryOsmPrimitive primitive = getPointInTime(pointInTimeType);
577 if (primitive == null)
578 return null;
579 return primitive.get(key);
580 }
581
582 public boolean oppositeHasTag(String key) {
583 PointInTimeType opposite = pointInTimeType.opposite();
584 HistoryOsmPrimitive primitive = getPointInTime(opposite);
585 if (primitive == null)
586 return false;
587 return primitive.hasTag(key);
588 }
589
590 public String getOppositeValue(String key) {
591 PointInTimeType opposite = pointInTimeType.opposite();
592 HistoryOsmPrimitive primitive = getPointInTime(opposite);
593 if (primitive == null)
594 return null;
595 return primitive.get(key);
596 }
597
598 public boolean hasSameValueAsOpposite(String key) {
599 String value = getValue(key);
600 String oppositeValue = getOppositeValue(key);
601 if (value == null || oppositeValue == null)
602 return false;
603 return value.equals(oppositeValue);
604 }
605
606 public PointInTimeType getPointInTimeType() {
607 return pointInTimeType;
608 }
609
610 public boolean isCurrentPointInTime() {
611 return pointInTimeType.equals(PointInTimeType.CURRENT_POINT_IN_TIME);
612 }
613
614 public boolean isReferencePointInTime() {
615 return pointInTimeType.equals(PointInTimeType.REFERENCE_POINT_IN_TIME);
616 }
617
618 @Override
619 public int getColumnCount() {
620 return 1;
621 }
622 }
623
624 protected void setLatest(HistoryOsmPrimitive latest) {
625 if (latest == null) {
626 if (this.current == this.latest) {
627 this.current = history != null ? history.getLatest() : null;
628 }
629 if (this.reference == this.latest) {
630 this.reference = history != null ? history.getLatest() : null;
631 }
632 this.latest = null;
633 } else {
634 if (this.current == this.latest) {
635 this.current = latest;
636 }
637 if (this.reference == this.latest) {
638 this.reference = latest;
639 }
640 this.latest = latest;
641 }
642 fireModelChange();
643 }
644
645 /**
646 * Removes this model as listener for data change and layer change events.
647 *
648 */
649 public void unlinkAsListener() {
650 OsmDataLayer editLayer = Main.main.getEditLayer();
651 if (editLayer != null) {
652 editLayer.data.removeDataSetListener(this);
653 }
654 MapView.removeLayerChangeListener(this);
655 }
656
657 /* ---------------------------------------------------------------------- */
658 /* DataSetListener */
659 /* ---------------------------------------------------------------------- */
660 @Override
661 public void nodeMoved(NodeMovedEvent event) {
662 Node node = event.getNode();
663 if (!node.isNew() && node.getId() == history.getId()) {
664 setLatest(new HistoryPrimitiveBuilder().build(node));
665 }
666 }
667
668 @Override
669 public void primitivesAdded(PrimitivesAddedEvent event) {
670 for (OsmPrimitive p: event.getPrimitives()) {
671 if (canShowAsLatest(p)) {
672 setLatest(new HistoryPrimitiveBuilder().build(p));
673 }
674 }
675 }
676
677 @Override
678 public void primitivesRemoved(PrimitivesRemovedEvent event) {
679 for (OsmPrimitive p: event.getPrimitives()) {
680 if (!p.isNew() && p.getId() == history.getId()) {
681 setLatest(null);
682 }
683 }
684 }
685
686 @Override
687 public void relationMembersChanged(RelationMembersChangedEvent event) {
688 Relation r = event.getRelation();
689 if (!r.isNew() && r.getId() == history.getId()) {
690 setLatest(new HistoryPrimitiveBuilder().build(r));
691 }
692 }
693
694 @Override
695 public void tagsChanged(TagsChangedEvent event) {
696 OsmPrimitive prim = event.getPrimitive();
697 if (!prim.isNew() && prim.getId() == history.getId()) {
698 setLatest(new HistoryPrimitiveBuilder().build(prim));
699 }
700 }
701
702 @Override
703 public void wayNodesChanged(WayNodesChangedEvent event) {
704 Way way = event.getChangedWay();
705 if (!way.isNew() && way.getId() == history.getId()) {
706 setLatest(new HistoryPrimitiveBuilder().build(way));
707 }
708 }
709
710 @Override
711 public void dataChanged(DataChangedEvent event) {
712 if (history == null)
713 return;
714 OsmPrimitive primitive = event.getDataset().getPrimitiveById(history.getId(), history.getType());
715 HistoryOsmPrimitive latest;
716 if (canShowAsLatest(primitive)) {
717 latest = new HistoryPrimitiveBuilder().build(primitive);
718 } else {
719 latest = null;
720 }
721 setLatest(latest);
722 fireModelChange();
723 }
724
725 @Override
726 public void otherDatasetChange(AbstractDatasetChangedEvent event) {
727 // Irrelevant
728 }
729
730 /* ---------------------------------------------------------------------- */
731 /* LayerChangeListener */
732 /* ---------------------------------------------------------------------- */
733 @Override
734 public void activeLayerChange(Layer oldLayer, Layer newLayer) {
735 if (oldLayer instanceof OsmDataLayer) {
736 OsmDataLayer l = (OsmDataLayer) oldLayer;
737 l.data.removeDataSetListener(this);
738 }
739 if (!(newLayer instanceof OsmDataLayer)) {
740 latest = null;
741 fireModelChange();
742 return;
743 }
744 OsmDataLayer l = (OsmDataLayer) newLayer;
745 l.data.addDataSetListener(this);
746 OsmPrimitive primitive = history != null ? l.data.getPrimitiveById(history.getId(), history.getType()) : null;
747 HistoryOsmPrimitive latest;
748 if (canShowAsLatest(primitive)) {
749 latest = new HistoryPrimitiveBuilder().build(primitive);
750 } else {
751 latest = null;
752 }
753 setLatest(latest);
754 fireModelChange();
755 }
756
757 @Override
758 public void layerAdded(Layer newLayer) {}
759
760 @Override
761 public void layerRemoved(Layer oldLayer) {}
762
763 /**
764 * Creates a {@link HistoryOsmPrimitive} from a {@link OsmPrimitive}
765 *
766 */
767 static class HistoryPrimitiveBuilder extends AbstractVisitor {
768 private HistoryOsmPrimitive clone;
769
770 @Override
771 public void visit(Node n) {
772 clone = new HistoryNode(n.getId(), n.getVersion(), n.isVisible(), getCurrentUser(), 0, null, n.getCoor(), false);
773 clone.setTags(n.getKeys());
774 }
775
776 @Override
777 public void visit(Relation r) {
778 clone = new HistoryRelation(r.getId(), r.getVersion(), r.isVisible(), getCurrentUser(), 0, null, false);
779 clone.setTags(r.getKeys());
780 HistoryRelation hr = (HistoryRelation) clone;
781 for (RelationMember rm : r.getMembers()) {
782 hr.addMember(new RelationMemberData(rm.getRole(), rm.getType(), rm.getUniqueId()));
783 }
784 }
785
786 @Override
787 public void visit(Way w) {
788 clone = new HistoryWay(w.getId(), w.getVersion(), w.isVisible(), getCurrentUser(), 0, null, false);
789 clone.setTags(w.getKeys());
790 for (Node n: w.getNodes()) {
791 ((HistoryWay) clone).addNode(n.getUniqueId());
792 }
793 }
794
795 private static User getCurrentUser() {
796 UserInfo info = JosmUserIdentityManager.getInstance().getUserInfo();
797 return info == null ? User.getAnonymous() : User.createOsmUser(info.getId(), info.getDisplayName());
798 }
799
800 public HistoryOsmPrimitive build(OsmPrimitive primitive) {
801 primitive.accept(this);
802 return clone;
803 }
804 }
805}
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