source: josm/trunk/src/org/openstreetmap/josm/data/osm/DataSet.java@ 12048

Last change on this file since 12048 was 12048, checked in by michael2402, 7 years ago

Add per-layer selection listeners. Make selection listener code more generic.
  • Property svn:eol-style set to native
File size: 51.3 KB
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1// License: GPL. For details, see LICENSE file.
2package org.openstreetmap.josm.data.osm;
3
4import static org.openstreetmap.josm.tools.I18n.tr;
5
6import java.awt.geom.Area;
7import java.util.ArrayList;
8import java.util.Collection;
9import java.util.Collections;
10import java.util.HashMap;
11import java.util.HashSet;
12import java.util.Iterator;
13import java.util.LinkedList;
14import java.util.List;
15import java.util.Map;
16import java.util.Objects;
17import java.util.Set;
18import java.util.concurrent.CopyOnWriteArrayList;
19import java.util.concurrent.locks.Lock;
20import java.util.concurrent.locks.ReadWriteLock;
21import java.util.concurrent.locks.ReentrantReadWriteLock;
22import java.util.function.Function;
23import java.util.function.Predicate;
24import java.util.stream.Collectors;
25import java.util.stream.Stream;
26
27import org.openstreetmap.josm.Main;
28import org.openstreetmap.josm.data.Bounds;
29import org.openstreetmap.josm.data.Data;
30import org.openstreetmap.josm.data.DataSource;
31import org.openstreetmap.josm.data.ProjectionBounds;
32import org.openstreetmap.josm.data.SelectionChangedListener;
33import org.openstreetmap.josm.data.coor.EastNorth;
34import org.openstreetmap.josm.data.coor.LatLon;
35import org.openstreetmap.josm.data.osm.DataSelectionListener.SelectionAddEvent;
36import org.openstreetmap.josm.data.osm.DataSelectionListener.SelectionChangeEvent;
37import org.openstreetmap.josm.data.osm.DataSelectionListener.SelectionRemoveEvent;
38import org.openstreetmap.josm.data.osm.DataSelectionListener.SelectionReplaceEvent;
39import org.openstreetmap.josm.data.osm.DataSelectionListener.SelectionToggleEvent;
40import org.openstreetmap.josm.data.osm.event.AbstractDatasetChangedEvent;
41import org.openstreetmap.josm.data.osm.event.ChangesetIdChangedEvent;
42import org.openstreetmap.josm.data.osm.event.DataChangedEvent;
43import org.openstreetmap.josm.data.osm.event.DataSetListener;
44import org.openstreetmap.josm.data.osm.event.NodeMovedEvent;
45import org.openstreetmap.josm.data.osm.event.PrimitiveFlagsChangedEvent;
46import org.openstreetmap.josm.data.osm.event.PrimitivesAddedEvent;
47import org.openstreetmap.josm.data.osm.event.PrimitivesRemovedEvent;
48import org.openstreetmap.josm.data.osm.event.RelationMembersChangedEvent;
49import org.openstreetmap.josm.data.osm.event.SelectionEventManager;
50import org.openstreetmap.josm.data.osm.event.TagsChangedEvent;
51import org.openstreetmap.josm.data.osm.event.WayNodesChangedEvent;
52import org.openstreetmap.josm.data.osm.visitor.BoundingXYVisitor;
53import org.openstreetmap.josm.data.projection.Projection;
54import org.openstreetmap.josm.data.projection.ProjectionChangeListener;
55import org.openstreetmap.josm.gui.progress.ProgressMonitor;
56import org.openstreetmap.josm.gui.tagging.ac.AutoCompletionManager;
57import org.openstreetmap.josm.tools.JosmRuntimeException;
58import org.openstreetmap.josm.tools.ListenerList;
59import org.openstreetmap.josm.tools.SubclassFilteredCollection;
60import org.openstreetmap.josm.tools.Utils;
61
62/**
63 * DataSet is the data behind the application. It can consists of only a few points up to the whole
64 * osm database. DataSet's can be merged together, saved, (up/down/disk)loaded etc.
65 *
66 * Note that DataSet is not an osm-primitive and so has no key association but a few members to
67 * store some information.
68 *
69 * Dataset is threadsafe - accessing Dataset simultaneously from different threads should never
70 * lead to data corruption or ConcurrentModificationException. However when for example one thread
71 * removes primitive and other thread try to add another primitive referring to the removed primitive,
72 * DataIntegrityException will occur.
73 *
74 * To prevent such situations, read/write lock is provided. While read lock is used, it's guaranteed that
75 * Dataset will not change. Sample usage:
76 * <code>
77 * ds.getReadLock().lock();
78 * try {
79 * // .. do something with dataset
80 * } finally {
81 * ds.getReadLock().unlock();
82 * }
83 * </code>
84 *
85 * Write lock should be used in case of bulk operations. In addition to ensuring that other threads can't
86 * use dataset in the middle of modifications it also stops sending of dataset events. That's good for performance
87 * reasons - GUI can be updated after all changes are done.
88 * Sample usage:
89 * <code>
90 * ds.beginUpdate()
91 * try {
92 * // .. do modifications
93 * } finally {
94 * ds.endUpdate();
95 * }
96 * </code>
97 *
98 * Note that it is not necessary to call beginUpdate/endUpdate for every dataset modification - dataset will get locked
99 * automatically.
100 *
101 * Note that locks cannot be upgraded - if one threads use read lock and and then write lock, dead lock will occur - see #5814 for
102 * sample ticket
103 *
104 * @author imi
105 */
106public final class DataSet implements Data, ProjectionChangeListener {
107
108 /**
109 * Upload policy.
110 *
111 * Determines if upload to the OSM server is intended, discouraged, or
112 * disabled / blocked.
113 */
114 public enum UploadPolicy {
115 /**
116 * Normal dataset, upload intended.
117 */
118 NORMAL("true"),
119 /**
120 * Upload discouraged, for example when using or distributing a private dataset.
121 */
122 DISCOURAGED("false"),
123 /**
124 * Upload blocked.
125 * Upload options completely disabled. Intended for special cases
126 * where a warning dialog is not enough, see #12731.
127 *
128 * For the user, it shouldn't be too easy to disable this flag.
129 */
130 BLOCKED("never");
131
132 final String xmlFlag;
133
134 UploadPolicy(String xmlFlag) {
135 this.xmlFlag = xmlFlag;
136 }
137
138 /**
139 * Get the corresponding value of the <code>upload='...'</code> XML-attribute
140 * in the .osm file.
141 * @return value of the <code>upload</code> attribute
142 */
143 public String getXmlFlag() {
144 return xmlFlag;
145 }
146 }
147
148 /**
149 * Maximum number of events that can be fired between beginUpdate/endUpdate to be send as single events (ie without DatasetChangedEvent)
150 */
151 private static final int MAX_SINGLE_EVENTS = 30;
152
153 /**
154 * Maximum number of events to kept between beginUpdate/endUpdate. When more events are created, that simple DatasetChangedEvent is sent)
155 */
156 private static final int MAX_EVENTS = 1000;
157
158 private final Storage<OsmPrimitive> allPrimitives = new Storage<>(new Storage.PrimitiveIdHash(), true);
159 private final Map<PrimitiveId, OsmPrimitive> primitivesMap = allPrimitives.foreignKey(new Storage.PrimitiveIdHash());
160 private final CopyOnWriteArrayList<DataSetListener> listeners = new CopyOnWriteArrayList<>();
161
162 // provide means to highlight map elements that are not osm primitives
163 private Collection<WaySegment> highlightedVirtualNodes = new LinkedList<>();
164 private Collection<WaySegment> highlightedWaySegments = new LinkedList<>();
165 private final ListenerList<HighlightUpdateListener> highlightUpdateListeners = ListenerList.create();
166
167 // Number of open calls to beginUpdate
168 private int updateCount;
169 // Events that occurred while dataset was locked but should be fired after write lock is released
170 private final List<AbstractDatasetChangedEvent> cachedEvents = new ArrayList<>();
171
172 private UploadPolicy uploadPolicy;
173
174 private final ReadWriteLock lock = new ReentrantReadWriteLock();
175
176 /**
177 * The mutex lock that is used to synchronize selection changes.
178 */
179 private final Object selectionLock = new Object();
180 /**
181 * The current selected primitives. This is always a unmodifiable set.
182 */
183 private Set<OsmPrimitive> currentSelectedPrimitives = Collections.emptySet();
184
185 /**
186 * A list of listeners that listen to selection changes on this layer.
187 */
188 private final ListenerList<DataSelectionListener> selectionListeners = ListenerList.create();
189
190 private Area cachedDataSourceArea;
191 private List<Bounds> cachedDataSourceBounds;
192
193 /**
194 * All data sources of this DataSet.
195 */
196 private final Collection<DataSource> dataSources = new LinkedList<>();
197
198 /**
199 * Constructs a new {@code DataSet}.
200 */
201 public DataSet() {
202 // Transparently register as projection change listener. No need to explicitly remove
203 // the listener, projection change listeners are managed as WeakReferences.
204 Main.addProjectionChangeListener(this);
205 addSelectionListener((DataSelectionListener) e -> fireDreprecatedSelectionChange(e.getSelection()));
206 }
207
208 /**
209 * Creates a new {@link DataSet}.
210 * @param copyFrom An other {@link DataSet} to copy the contents of this dataset from.
211 * @since 10346
212 */
213 public DataSet(DataSet copyFrom) {
214 this();
215 copyFrom.getReadLock().lock();
216 try {
217 Map<OsmPrimitive, OsmPrimitive> primMap = new HashMap<>();
218 for (Node n : copyFrom.nodes) {
219 Node newNode = new Node(n);
220 primMap.put(n, newNode);
221 addPrimitive(newNode);
222 }
223 for (Way w : copyFrom.ways) {
224 Way newWay = new Way(w);
225 primMap.put(w, newWay);
226 List<Node> newNodes = new ArrayList<>();
227 for (Node n: w.getNodes()) {
228 newNodes.add((Node) primMap.get(n));
229 }
230 newWay.setNodes(newNodes);
231 addPrimitive(newWay);
232 }
233 // Because relations can have other relations as members we first clone all relations
234 // and then get the cloned members
235 for (Relation r : copyFrom.relations) {
236 Relation newRelation = new Relation(r, r.isNew());
237 newRelation.setMembers(null);
238 primMap.put(r, newRelation);
239 addPrimitive(newRelation);
240 }
241 for (Relation r : copyFrom.relations) {
242 Relation newRelation = (Relation) primMap.get(r);
243 List<RelationMember> newMembers = new ArrayList<>();
244 for (RelationMember rm: r.getMembers()) {
245 newMembers.add(new RelationMember(rm.getRole(), primMap.get(rm.getMember())));
246 }
247 newRelation.setMembers(newMembers);
248 }
249 for (DataSource source : copyFrom.dataSources) {
250 dataSources.add(new DataSource(source));
251 }
252 version = copyFrom.version;
253 } finally {
254 copyFrom.getReadLock().unlock();
255 }
256 }
257
258 /**
259 * Adds a new data source.
260 * @param source data source to add
261 * @return {@code true} if the collection changed as a result of the call
262 * @since 11626
263 */
264 public synchronized boolean addDataSource(DataSource source) {
265 return addDataSources(Collections.singleton(source));
266 }
267
268 /**
269 * Adds new data sources.
270 * @param sources data sources to add
271 * @return {@code true} if the collection changed as a result of the call
272 * @since 11626
273 */
274 public synchronized boolean addDataSources(Collection<DataSource> sources) {
275 boolean changed = dataSources.addAll(sources);
276 if (changed) {
277 cachedDataSourceArea = null;
278 cachedDataSourceBounds = null;
279 }
280 return changed;
281 }
282
283 /**
284 * Returns the lock used for reading.
285 * @return the lock used for reading
286 */
287 public Lock getReadLock() {
288 return lock.readLock();
289 }
290
291 /**
292 * History of selections - shared by plugins and SelectionListDialog
293 */
294 private final LinkedList<Collection<? extends OsmPrimitive>> selectionHistory = new LinkedList<>();
295
296 /**
297 * Replies the history of JOSM selections
298 *
299 * @return list of history entries
300 */
301 public LinkedList<Collection<? extends OsmPrimitive>> getSelectionHistory() {
302 return selectionHistory;
303 }
304
305 /**
306 * Clears selection history list
307 */
308 public void clearSelectionHistory() {
309 selectionHistory.clear();
310 }
311
312 /**
313 * Maintains a list of used tags for autocompletion.
314 */
315 private AutoCompletionManager autocomplete;
316
317 /**
318 * Returns the autocompletion manager, which maintains a list of used tags for autocompletion.
319 * @return the autocompletion manager
320 */
321 public AutoCompletionManager getAutoCompletionManager() {
322 if (autocomplete == null) {
323 autocomplete = new AutoCompletionManager(this);
324 addDataSetListener(autocomplete);
325 }
326 return autocomplete;
327 }
328
329 /**
330 * The API version that created this data set, if any.
331 */
332 private String version;
333
334 /**
335 * Replies the API version this dataset was created from. May be null.
336 *
337 * @return the API version this dataset was created from. May be null.
338 */
339 public String getVersion() {
340 return version;
341 }
342
343 /**
344 * Sets the API version this dataset was created from.
345 *
346 * @param version the API version, i.e. "0.6"
347 */
348 public void setVersion(String version) {
349 this.version = version;
350 }
351
352 /**
353 * Determines if upload is being discouraged.
354 * (i.e. this dataset contains private data which should not be uploaded)
355 * @return {@code true} if upload is being discouraged, {@code false} otherwise
356 * @see #setUploadDiscouraged
357 * @deprecated use {@link #getUploadPolicy()}
358 */
359 @Deprecated
360 public boolean isUploadDiscouraged() {
361 return uploadPolicy == UploadPolicy.DISCOURAGED || uploadPolicy == UploadPolicy.BLOCKED;
362 }
363
364 /**
365 * Sets the "upload discouraged" flag.
366 * @param uploadDiscouraged {@code true} if this dataset contains private data which should not be uploaded
367 * @see #isUploadDiscouraged
368 * @deprecated use {@link #setUploadPolicy(UploadPolicy)}
369 */
370 @Deprecated
371 public void setUploadDiscouraged(boolean uploadDiscouraged) {
372 if (uploadPolicy != UploadPolicy.BLOCKED) {
373 this.uploadPolicy = uploadDiscouraged ? UploadPolicy.DISCOURAGED : UploadPolicy.NORMAL;
374 }
375 }
376
377 /**
378 * Get the upload policy.
379 * @return the upload policy
380 * @see #setUploadPolicy(UploadPolicy)
381 */
382 public UploadPolicy getUploadPolicy() {
383 return this.uploadPolicy;
384 }
385
386 /**
387 * Sets the upload policy.
388 * @param uploadPolicy the upload policy
389 * @see #getUploadPolicy()
390 */
391 public void setUploadPolicy(UploadPolicy uploadPolicy) {
392 this.uploadPolicy = uploadPolicy;
393 }
394
395 /**
396 * Holding bin for changeset tag information, to be applied when or if this is ever uploaded.
397 */
398 private final Map<String, String> changeSetTags = new HashMap<>();
399
400 /**
401 * Replies the set of changeset tags to be applied when or if this is ever uploaded.
402 * @return the set of changeset tags
403 * @see #addChangeSetTag
404 */
405 public Map<String, String> getChangeSetTags() {
406 return changeSetTags;
407 }
408
409 /**
410 * Adds a new changeset tag.
411 * @param k Key
412 * @param v Value
413 * @see #getChangeSetTags
414 */
415 public void addChangeSetTag(String k, String v) {
416 this.changeSetTags.put(k, v);
417 }
418
419 /**
420 * All nodes goes here, even when included in other data (ways etc). This enables the instant
421 * conversion of the whole DataSet by iterating over this data structure.
422 */
423 private final QuadBuckets<Node> nodes = new QuadBuckets<>();
424
425 /**
426 * Gets a filtered collection of primitives matching the given predicate.
427 * @param <T> The primitive type.
428 * @param predicate The predicate to match
429 * @return The list of primtives.
430 * @since 10590
431 */
432 public <T extends OsmPrimitive> Collection<T> getPrimitives(Predicate<? super OsmPrimitive> predicate) {
433 return new SubclassFilteredCollection<>(allPrimitives, predicate);
434 }
435
436 /**
437 * Replies an unmodifiable collection of nodes in this dataset
438 *
439 * @return an unmodifiable collection of nodes in this dataset
440 */
441 public Collection<Node> getNodes() {
442 return getPrimitives(Node.class::isInstance);
443 }
444
445 /**
446 * Searches for nodes in the given bounding box.
447 * @param bbox the bounding box
448 * @return List of nodes in the given bbox. Can be empty but not null
449 */
450 public List<Node> searchNodes(BBox bbox) {
451 lock.readLock().lock();
452 try {
453 return nodes.search(bbox);
454 } finally {
455 lock.readLock().unlock();
456 }
457 }
458
459 /**
460 * Determines if the given node can be retrieved in the data set through its bounding box. Useful for dataset consistency test.
461 * For efficiency reasons this method does not lock the dataset, you have to lock it manually.
462 *
463 * @param n The node to search
464 * @return {@code true} if {@code n} ban be retrieved in this data set, {@code false} otherwise
465 * @since 7501
466 */
467 public boolean containsNode(Node n) {
468 return nodes.contains(n);
469 }
470
471 /**
472 * All ways (Streets etc.) in the DataSet.
473 *
474 * The way nodes are stored only in the way list.
475 */
476 private final QuadBuckets<Way> ways = new QuadBuckets<>();
477
478 /**
479 * Replies an unmodifiable collection of ways in this dataset
480 *
481 * @return an unmodifiable collection of ways in this dataset
482 */
483 public Collection<Way> getWays() {
484 return getPrimitives(Way.class::isInstance);
485 }
486
487 /**
488 * Searches for ways in the given bounding box.
489 * @param bbox the bounding box
490 * @return List of ways in the given bbox. Can be empty but not null
491 */
492 public List<Way> searchWays(BBox bbox) {
493 lock.readLock().lock();
494 try {
495 return ways.search(bbox);
496 } finally {
497 lock.readLock().unlock();
498 }
499 }
500
501 /**
502 * Determines if the given way can be retrieved in the data set through its bounding box. Useful for dataset consistency test.
503 * For efficiency reasons this method does not lock the dataset, you have to lock it manually.
504 *
505 * @param w The way to search
506 * @return {@code true} if {@code w} ban be retrieved in this data set, {@code false} otherwise
507 * @since 7501
508 */
509 public boolean containsWay(Way w) {
510 return ways.contains(w);
511 }
512
513 /**
514 * All relations/relationships
515 */
516 private final Collection<Relation> relations = new ArrayList<>();
517
518 /**
519 * Replies an unmodifiable collection of relations in this dataset
520 *
521 * @return an unmodifiable collection of relations in this dataset
522 */
523 public Collection<Relation> getRelations() {
524 return getPrimitives(Relation.class::isInstance);
525 }
526
527 /**
528 * Searches for relations in the given bounding box.
529 * @param bbox the bounding box
530 * @return List of relations in the given bbox. Can be empty but not null
531 */
532 public List<Relation> searchRelations(BBox bbox) {
533 lock.readLock().lock();
534 try {
535 // QuadBuckets might be useful here (don't forget to do reindexing after some of rm is changed)
536 return relations.stream()
537 .filter(r -> r.getBBox().intersects(bbox))
538 .collect(Collectors.toList());
539 } finally {
540 lock.readLock().unlock();
541 }
542 }
543
544 /**
545 * Determines if the given relation can be retrieved in the data set through its bounding box. Useful for dataset consistency test.
546 * For efficiency reasons this method does not lock the dataset, you have to lock it manually.
547 *
548 * @param r The relation to search
549 * @return {@code true} if {@code r} ban be retrieved in this data set, {@code false} otherwise
550 * @since 7501
551 */
552 public boolean containsRelation(Relation r) {
553 return relations.contains(r);
554 }
555
556 /**
557 * Returns a collection containing all primitives of the dataset.
558 * @return A collection containing all primitives of the dataset. Data is not ordered
559 */
560 public Collection<OsmPrimitive> allPrimitives() {
561 return getPrimitives(o -> true);
562 }
563
564 /**
565 * Returns a collection containing all not-deleted primitives.
566 * @return A collection containing all not-deleted primitives.
567 * @see OsmPrimitive#isDeleted
568 */
569 public Collection<OsmPrimitive> allNonDeletedPrimitives() {
570 return getPrimitives(p -> !p.isDeleted());
571 }
572
573 /**
574 * Returns a collection containing all not-deleted complete primitives.
575 * @return A collection containing all not-deleted complete primitives.
576 * @see OsmPrimitive#isDeleted
577 * @see OsmPrimitive#isIncomplete
578 */
579 public Collection<OsmPrimitive> allNonDeletedCompletePrimitives() {
580 return getPrimitives(primitive -> !primitive.isDeleted() && !primitive.isIncomplete());
581 }
582
583 /**
584 * Returns a collection containing all not-deleted complete physical primitives.
585 * @return A collection containing all not-deleted complete physical primitives (nodes and ways).
586 * @see OsmPrimitive#isDeleted
587 * @see OsmPrimitive#isIncomplete
588 */
589 public Collection<OsmPrimitive> allNonDeletedPhysicalPrimitives() {
590 return getPrimitives(primitive -> !primitive.isDeleted() && !primitive.isIncomplete() && !(primitive instanceof Relation));
591 }
592
593 /**
594 * Returns a collection containing all modified primitives.
595 * @return A collection containing all modified primitives.
596 * @see OsmPrimitive#isModified
597 */
598 public Collection<OsmPrimitive> allModifiedPrimitives() {
599 return getPrimitives(OsmPrimitive::isModified);
600 }
601
602 /**
603 * Adds a primitive to the dataset.
604 *
605 * @param primitive the primitive.
606 */
607 public void addPrimitive(OsmPrimitive primitive) {
608 Objects.requireNonNull(primitive, "primitive");
609 beginUpdate();
610 try {
611 if (getPrimitiveById(primitive) != null)
612 throw new DataIntegrityProblemException(
613 tr("Unable to add primitive {0} to the dataset because it is already included", primitive.toString()));
614
615 allPrimitives.add(primitive);
616 primitive.setDataset(this);
617 primitive.updatePosition(); // Set cached bbox for way and relation (required for reindexWay and reindexRelation to work properly)
618 boolean success = false;
619 if (primitive instanceof Node) {
620 success = nodes.add((Node) primitive);
621 } else if (primitive instanceof Way) {
622 success = ways.add((Way) primitive);
623 } else if (primitive instanceof Relation) {
624 success = relations.add((Relation) primitive);
625 }
626 if (!success)
627 throw new JosmRuntimeException("failed to add primitive: "+primitive);
628 firePrimitivesAdded(Collections.singletonList(primitive), false);
629 } finally {
630 endUpdate();
631 }
632 }
633
634 /**
635 * Removes a primitive from the dataset. This method only removes the
636 * primitive form the respective collection of primitives managed
637 * by this dataset, i.e. from {@link #nodes}, {@link #ways}, or
638 * {@link #relations}. References from other primitives to this
639 * primitive are left unchanged.
640 *
641 * @param primitiveId the id of the primitive
642 */
643 public void removePrimitive(PrimitiveId primitiveId) {
644 beginUpdate();
645 try {
646 OsmPrimitive primitive = getPrimitiveByIdChecked(primitiveId);
647 if (primitive == null)
648 return;
649 boolean success = false;
650 if (primitive instanceof Node) {
651 success = nodes.remove(primitive);
652 } else if (primitive instanceof Way) {
653 success = ways.remove(primitive);
654 } else if (primitive instanceof Relation) {
655 success = relations.remove(primitive);
656 }
657 if (!success)
658 throw new JosmRuntimeException("failed to remove primitive: "+primitive);
659 clearSelection(primitiveId);
660 allPrimitives.remove(primitive);
661 primitive.setDataset(null);
662 firePrimitivesRemoved(Collections.singletonList(primitive), false);
663 } finally {
664 endUpdate();
665 }
666 }
667
668 /*---------------------------------------------------
669 * SELECTION HANDLING
670 *---------------------------------------------------*/
671
672 /**
673 * Add a listener that listens to selection changes in this specific data set.
674 * @param listener The listener.
675 * @see #removeSelectionListener(DataSelectionListener)
676 * @see SelectionEventManager#addSelectionListener(SelectionChangedListener,
677 * org.openstreetmap.josm.data.osm.event.DatasetEventManager.FireMode)
678 * To add a global listener.
679 */
680 public void addSelectionListener(DataSelectionListener listener) {
681 selectionListeners.addListener(listener);
682 }
683
684 /**
685 * Remove a listener that listens to selection changes in this specific data set.
686 * @param listener The listener.
687 * @see #addSelectionListener(DataSelectionListener)
688 */
689 public void removeSelectionListener(DataSelectionListener listener) {
690 selectionListeners.removeListener(listener);
691 }
692
693 /*---------------------------------------------------
694 * OLD SELECTION HANDLING
695 *---------------------------------------------------*/
696
697 /**
698 * A list of listeners to selection changed events. The list is static, as listeners register
699 * themselves for any dataset selection changes that occur, regardless of the current active
700 * dataset. (However, the selection does only change in the active layer)
701 */
702 private static final Collection<SelectionChangedListener> selListeners = new CopyOnWriteArrayList<>();
703
704 /**
705 * Adds a new selection listener.
706 * @param listener The selection listener to add
707 * @see #addSelectionListener(DataSelectionListener)
708 * @see SelectionEventManager#removeSelectionListener(SelectionChangedListener)
709 */
710 public static void addSelectionListener(SelectionChangedListener listener) {
711 ((CopyOnWriteArrayList<SelectionChangedListener>) selListeners).addIfAbsent(listener);
712 }
713
714 /**
715 * Removes a selection listener.
716 * @param listener The selection listener to remove
717 * @see #removeSelectionListener(DataSelectionListener)
718 * @see SelectionEventManager#removeSelectionListener(SelectionChangedListener)
719 */
720 public static void removeSelectionListener(SelectionChangedListener listener) {
721 selListeners.remove(listener);
722 }
723
724 /**
725 * Notifies all registered {@link SelectionChangedListener} about the current selection in
726 * this dataset.
727 * @deprecated You should never need to do this from the outside.
728 */
729 @Deprecated
730 public void fireSelectionChanged() {
731 fireDreprecatedSelectionChange(getAllSelected());
732 }
733
734 private static void fireDreprecatedSelectionChange(Collection<? extends OsmPrimitive> currentSelection) {
735 for (SelectionChangedListener l : selListeners) {
736 l.selectionChanged(currentSelection);
737 }
738 }
739
740 /**
741 * Returns selected nodes and ways.
742 * @return selected nodes and ways
743 */
744 public Collection<OsmPrimitive> getSelectedNodesAndWays() {
745 return new SubclassFilteredCollection<>(getSelected(), primitive -> primitive instanceof Node || primitive instanceof Way);
746 }
747
748 /**
749 * Returns an unmodifiable collection of *WaySegments* whose virtual
750 * nodes should be highlighted. WaySegments are used to avoid having
751 * to create a VirtualNode class that wouldn't have much purpose otherwise.
752 *
753 * @return unmodifiable collection of WaySegments
754 */
755 public Collection<WaySegment> getHighlightedVirtualNodes() {
756 return Collections.unmodifiableCollection(highlightedVirtualNodes);
757 }
758
759 /**
760 * Returns an unmodifiable collection of WaySegments that should be highlighted.
761 *
762 * @return unmodifiable collection of WaySegments
763 */
764 public Collection<WaySegment> getHighlightedWaySegments() {
765 return Collections.unmodifiableCollection(highlightedWaySegments);
766 }
767
768 /**
769 * Adds a listener that gets notified whenever way segment / virtual nodes highlights change.
770 * @param listener The Listener
771 * @since 12014
772 */
773 public void addHighlightUpdateListener(HighlightUpdateListener listener) {
774 highlightUpdateListeners.addListener(listener);
775 }
776
777 /**
778 * Removes a listener that was added with {@link #addHighlightUpdateListener(HighlightUpdateListener)}
779 * @param listener The Listener
780 * @since 12014
781 */
782 public void removeHighlightUpdateListener(HighlightUpdateListener listener) {
783 highlightUpdateListeners.removeListener(listener);
784 }
785
786 /**
787 * Replies an unmodifiable collection of primitives currently selected
788 * in this dataset, except deleted ones. May be empty, but not null.
789 *
790 * @return unmodifiable collection of primitives
791 */
792 public Collection<OsmPrimitive> getSelected() {
793 return new SubclassFilteredCollection<>(getAllSelected(), p -> !p.isDeleted());
794 }
795
796 /**
797 * Replies an unmodifiable collection of primitives currently selected
798 * in this dataset, including deleted ones. May be empty, but not null.
799 *
800 * @return unmodifiable collection of primitives
801 */
802 public Collection<OsmPrimitive> getAllSelected() {
803 return currentSelectedPrimitives;
804 }
805
806 /**
807 * Returns selected nodes.
808 * @return selected nodes
809 */
810 public Collection<Node> getSelectedNodes() {
811 return new SubclassFilteredCollection<>(getSelected(), Node.class::isInstance);
812 }
813
814 /**
815 * Returns selected ways.
816 * @return selected ways
817 */
818 public Collection<Way> getSelectedWays() {
819 return new SubclassFilteredCollection<>(getSelected(), Way.class::isInstance);
820 }
821
822 /**
823 * Returns selected relations.
824 * @return selected relations
825 */
826 public Collection<Relation> getSelectedRelations() {
827 return new SubclassFilteredCollection<>(getSelected(), Relation.class::isInstance);
828 }
829
830 /**
831 * Determines whether the selection is empty or not
832 * @return whether the selection is empty or not
833 */
834 public boolean selectionEmpty() {
835 return currentSelectedPrimitives.isEmpty();
836 }
837
838 /**
839 * Determines whether the given primitive is selected or not
840 * @param osm the primitive
841 * @return whether {@code osm} is selected or not
842 */
843 public boolean isSelected(OsmPrimitive osm) {
844 return currentSelectedPrimitives.contains(osm);
845 }
846
847 /**
848 * set what virtual nodes should be highlighted. Requires a Collection of
849 * *WaySegments* to avoid a VirtualNode class that wouldn't have much use
850 * otherwise.
851 * @param waySegments Collection of way segments
852 */
853 public void setHighlightedVirtualNodes(Collection<WaySegment> waySegments) {
854 if (highlightedVirtualNodes.isEmpty() && waySegments.isEmpty())
855 return;
856
857 highlightedVirtualNodes = waySegments;
858 fireHighlightingChanged();
859 }
860
861 /**
862 * set what virtual ways should be highlighted.
863 * @param waySegments Collection of way segments
864 */
865 public void setHighlightedWaySegments(Collection<WaySegment> waySegments) {
866 if (highlightedWaySegments.isEmpty() && waySegments.isEmpty())
867 return;
868
869 highlightedWaySegments = waySegments;
870 fireHighlightingChanged();
871 }
872
873 /**
874 * Sets the current selection to the primitives in <code>selection</code>.
875 * Notifies all {@link SelectionChangedListener} if <code>fireSelectionChangeEvent</code> is true.
876 *
877 * @param selection the selection
878 * @param fireSelectionChangeEvent true, if the selection change listeners are to be notified; false, otherwise
879 * @deprecated Use {@link #setSelected(Collection)} instead. To bee removed end of 2017. Does not seem to be used by plugins.
880 */
881 @Deprecated
882 public void setSelected(Collection<? extends PrimitiveId> selection, boolean fireSelectionChangeEvent) {
883 setSelected(selection);
884 }
885
886 /**
887 * Sets the current selection to the primitives in <code>selection</code>
888 * and notifies all {@link SelectionChangedListener}.
889 *
890 * @param selection the selection
891 */
892 public void setSelected(Collection<? extends PrimitiveId> selection) {
893 setSelected(selection.stream());
894 }
895
896 /**
897 * Sets the current selection to the primitives in <code>osm</code>
898 * and notifies all {@link SelectionChangedListener}.
899 *
900 * @param osm the primitives to set. <code>null</code> values are ignored for now, but this may be removed in the future.
901 */
902 public void setSelected(PrimitiveId... osm) {
903 setSelected(Stream.of(osm).filter(Objects::nonNull));
904 }
905
906 private void setSelected(Stream<? extends PrimitiveId> stream) {
907 doSelectionChange(old -> new SelectionReplaceEvent(this, old,
908 stream.map(this::getPrimitiveByIdChecked).filter(Objects::nonNull)));
909 }
910
911 /**
912 * Adds the primitives in <code>selection</code> to the current selection
913 * and notifies all {@link SelectionChangedListener}.
914 *
915 * @param selection the selection
916 */
917 public void addSelected(Collection<? extends PrimitiveId> selection) {
918 addSelected(selection.stream());
919 }
920
921 /**
922 * Adds the primitives in <code>osm</code> to the current selection
923 * and notifies all {@link SelectionChangedListener}.
924 *
925 * @param osm the primitives to add
926 */
927 public void addSelected(PrimitiveId... osm) {
928 addSelected(Stream.of(osm));
929 }
930
931 private void addSelected(Stream<? extends PrimitiveId> stream) {
932 doSelectionChange(old -> new SelectionAddEvent(this, old,
933 stream.map(this::getPrimitiveByIdChecked).filter(Objects::nonNull)));
934 }
935
936 /**
937 * Removes the selection from every value in the collection.
938 * @param osm The collection of ids to remove the selection from.
939 */
940 public void clearSelection(PrimitiveId... osm) {
941 clearSelection(Stream.of(osm));
942 }
943
944 /**
945 * Removes the selection from every value in the collection.
946 * @param list The collection of ids to remove the selection from.
947 */
948 public void clearSelection(Collection<? extends PrimitiveId> list) {
949 clearSelection(list.stream());
950 }
951
952 /**
953 * Clears the current selection.
954 */
955 public void clearSelection() {
956 setSelected(Stream.empty());
957 }
958
959 private void clearSelection(Stream<? extends PrimitiveId> stream) {
960 doSelectionChange(old -> new SelectionRemoveEvent(this, old,
961 stream.map(this::getPrimitiveByIdChecked).filter(Objects::nonNull)));
962 }
963
964 /**
965 * Toggles the selected state of the given collection of primitives.
966 * @param osm The primitives to toggle
967 */
968 public void toggleSelected(Collection<? extends PrimitiveId> osm) {
969 toggleSelected(osm.stream());
970 }
971
972 /**
973 * Toggles the selected state of the given collection of primitives.
974 * @param osm The primitives to toggle
975 */
976 public void toggleSelected(PrimitiveId... osm) {
977 toggleSelected(Stream.of(osm));
978 }
979
980 private void toggleSelected(Stream<? extends PrimitiveId> stream) {
981 doSelectionChange(old -> new SelectionToggleEvent(this, old,
982 stream.map(this::getPrimitiveByIdChecked).filter(Objects::nonNull)));
983 }
984
985 /**
986 * Do a selection change.
987 * <p>
988 * This is the only method that changes the current selection state.
989 * @param command A generator that generates the {@link SelectionChangeEvent} for the given base set of currently selected primitives.
990 * @return true iff the command did change the selection.
991 * @since 12048
992 */
993 private boolean doSelectionChange(Function<Set<OsmPrimitive>, SelectionChangeEvent> command) {
994 lock.readLock().lock();
995 try {
996 synchronized (selectionLock) {
997 SelectionChangeEvent event = command.apply(currentSelectedPrimitives);
998 if (event.isNop()) {
999 return false;
1000 }
1001 currentSelectedPrimitives = event.getSelection();
1002 selectionListeners.fireEvent(l -> l.selectionChanged(event));
1003 return true;
1004 }
1005 } finally {
1006 lock.readLock().unlock();
1007 }
1008 }
1009
1010 /**
1011 * clear all highlights of virtual nodes
1012 */
1013 public void clearHighlightedVirtualNodes() {
1014 setHighlightedVirtualNodes(new ArrayList<WaySegment>());
1015 }
1016
1017 /**
1018 * clear all highlights of way segments
1019 */
1020 public void clearHighlightedWaySegments() {
1021 setHighlightedWaySegments(new ArrayList<WaySegment>());
1022 }
1023
1024 @Override
1025 public synchronized Area getDataSourceArea() {
1026 if (cachedDataSourceArea == null) {
1027 cachedDataSourceArea = Data.super.getDataSourceArea();
1028 }
1029 return cachedDataSourceArea;
1030 }
1031
1032 @Override
1033 public synchronized List<Bounds> getDataSourceBounds() {
1034 if (cachedDataSourceBounds == null) {
1035 cachedDataSourceBounds = Data.super.getDataSourceBounds();
1036 }
1037 return Collections.unmodifiableList(cachedDataSourceBounds);
1038 }
1039
1040 @Override
1041 public synchronized Collection<DataSource> getDataSources() {
1042 return Collections.unmodifiableCollection(dataSources);
1043 }
1044
1045 /**
1046 * Returns a primitive with a given id from the data set. null, if no such primitive exists
1047 *
1048 * @param id uniqueId of the primitive. Might be &lt; 0 for newly created primitives
1049 * @param type the type of the primitive. Must not be null.
1050 * @return the primitive
1051 * @throws NullPointerException if type is null
1052 */
1053 public OsmPrimitive getPrimitiveById(long id, OsmPrimitiveType type) {
1054 return getPrimitiveById(new SimplePrimitiveId(id, type));
1055 }
1056
1057 /**
1058 * Returns a primitive with a given id from the data set. null, if no such primitive exists
1059 *
1060 * @param primitiveId type and uniqueId of the primitive. Might be &lt; 0 for newly created primitives
1061 * @return the primitive
1062 */
1063 public OsmPrimitive getPrimitiveById(PrimitiveId primitiveId) {
1064 return primitiveId != null ? primitivesMap.get(primitiveId) : null;
1065 }
1066
1067 /**
1068 * Show message and stack trace in log in case primitive is not found
1069 * @param primitiveId primitive id to look for
1070 * @return Primitive by id.
1071 */
1072 private OsmPrimitive getPrimitiveByIdChecked(PrimitiveId primitiveId) {
1073 OsmPrimitive result = getPrimitiveById(primitiveId);
1074 if (result == null && primitiveId != null) {
1075 Main.warn(tr("JOSM expected to find primitive [{0} {1}] in dataset but it is not there. Please report this "
1076 + "at {2}. This is not a critical error, it should be safe to continue in your work.",
1077 primitiveId.getType(), Long.toString(primitiveId.getUniqueId()), Main.getJOSMWebsite()));
1078 Main.error(new Exception());
1079 }
1080
1081 return result;
1082 }
1083
1084 private static void deleteWay(Way way) {
1085 way.setNodes(null);
1086 way.setDeleted(true);
1087 }
1088
1089 /**
1090 * Removes all references from ways in this dataset to a particular node.
1091 *
1092 * @param node the node
1093 * @return The set of ways that have been modified
1094 */
1095 public Set<Way> unlinkNodeFromWays(Node node) {
1096 Set<Way> result = new HashSet<>();
1097 beginUpdate();
1098 try {
1099 for (Way way : OsmPrimitive.getFilteredList(node.getReferrers(), Way.class)) {
1100 List<Node> wayNodes = way.getNodes();
1101 if (wayNodes.remove(node)) {
1102 if (wayNodes.size() < 2) {
1103 deleteWay(way);
1104 } else {
1105 way.setNodes(wayNodes);
1106 }
1107 result.add(way);
1108 }
1109 }
1110 } finally {
1111 endUpdate();
1112 }
1113 return result;
1114 }
1115
1116 /**
1117 * removes all references from relations in this dataset to this primitive
1118 *
1119 * @param primitive the primitive
1120 * @return The set of relations that have been modified
1121 */
1122 public Set<Relation> unlinkPrimitiveFromRelations(OsmPrimitive primitive) {
1123 Set<Relation> result = new HashSet<>();
1124 beginUpdate();
1125 try {
1126 for (Relation relation : relations) {
1127 List<RelationMember> members = relation.getMembers();
1128
1129 Iterator<RelationMember> it = members.iterator();
1130 boolean removed = false;
1131 while (it.hasNext()) {
1132 RelationMember member = it.next();
1133 if (member.getMember().equals(primitive)) {
1134 it.remove();
1135 removed = true;
1136 }
1137 }
1138
1139 if (removed) {
1140 relation.setMembers(members);
1141 result.add(relation);
1142 }
1143 }
1144 } finally {
1145 endUpdate();
1146 }
1147 return result;
1148 }
1149
1150 /**
1151 * Removes all references from other primitives to the referenced primitive.
1152 *
1153 * @param referencedPrimitive the referenced primitive
1154 * @return The set of primitives that have been modified
1155 */
1156 public Set<OsmPrimitive> unlinkReferencesToPrimitive(OsmPrimitive referencedPrimitive) {
1157 Set<OsmPrimitive> result = new HashSet<>();
1158 beginUpdate();
1159 try {
1160 if (referencedPrimitive instanceof Node) {
1161 result.addAll(unlinkNodeFromWays((Node) referencedPrimitive));
1162 }
1163 result.addAll(unlinkPrimitiveFromRelations(referencedPrimitive));
1164 } finally {
1165 endUpdate();
1166 }
1167 return result;
1168 }
1169
1170 /**
1171 * Replies true if there is at least one primitive in this dataset with
1172 * {@link OsmPrimitive#isModified()} == <code>true</code>.
1173 *
1174 * @return true if there is at least one primitive in this dataset with
1175 * {@link OsmPrimitive#isModified()} == <code>true</code>.
1176 */
1177 public boolean isModified() {
1178 for (OsmPrimitive p: allPrimitives) {
1179 if (p.isModified())
1180 return true;
1181 }
1182 return false;
1183 }
1184
1185 private void reindexNode(Node node, LatLon newCoor, EastNorth eastNorth) {
1186 if (!nodes.remove(node))
1187 throw new JosmRuntimeException("Reindexing node failed to remove");
1188 node.setCoorInternal(newCoor, eastNorth);
1189 if (!nodes.add(node))
1190 throw new JosmRuntimeException("Reindexing node failed to add");
1191 for (OsmPrimitive primitive: node.getReferrers()) {
1192 if (primitive instanceof Way) {
1193 reindexWay((Way) primitive);
1194 } else {
1195 reindexRelation((Relation) primitive);
1196 }
1197 }
1198 }
1199
1200 private void reindexWay(Way way) {
1201 BBox before = way.getBBox();
1202 if (!ways.remove(way))
1203 throw new JosmRuntimeException("Reindexing way failed to remove");
1204 way.updatePosition();
1205 if (!ways.add(way))
1206 throw new JosmRuntimeException("Reindexing way failed to add");
1207 if (!way.getBBox().equals(before)) {
1208 for (OsmPrimitive primitive: way.getReferrers()) {
1209 reindexRelation((Relation) primitive);
1210 }
1211 }
1212 }
1213
1214 private static void reindexRelation(Relation relation) {
1215 BBox before = relation.getBBox();
1216 relation.updatePosition();
1217 if (!before.equals(relation.getBBox())) {
1218 for (OsmPrimitive primitive: relation.getReferrers()) {
1219 reindexRelation((Relation) primitive);
1220 }
1221 }
1222 }
1223
1224 /**
1225 * Adds a new data set listener.
1226 * @param dsl The data set listener to add
1227 */
1228 public void addDataSetListener(DataSetListener dsl) {
1229 listeners.addIfAbsent(dsl);
1230 }
1231
1232 /**
1233 * Removes a data set listener.
1234 * @param dsl The data set listener to remove
1235 */
1236 public void removeDataSetListener(DataSetListener dsl) {
1237 listeners.remove(dsl);
1238 }
1239
1240 /**
1241 * Can be called before bigger changes on dataset. Events are disabled until {@link #endUpdate()}.
1242 * {@link DataSetListener#dataChanged(DataChangedEvent event)} event is triggered after end of changes
1243 * <br>
1244 * Typical usecase should look like this:
1245 * <pre>
1246 * ds.beginUpdate();
1247 * try {
1248 * ...
1249 * } finally {
1250 * ds.endUpdate();
1251 * }
1252 * </pre>
1253 */
1254 public void beginUpdate() {
1255 lock.writeLock().lock();
1256 updateCount++;
1257 }
1258
1259 /**
1260 * @see DataSet#beginUpdate()
1261 */
1262 public void endUpdate() {
1263 if (updateCount > 0) {
1264 updateCount--;
1265 List<AbstractDatasetChangedEvent> eventsToFire = Collections.emptyList();
1266 if (updateCount == 0) {
1267 eventsToFire = new ArrayList<>(cachedEvents);
1268 cachedEvents.clear();
1269 }
1270
1271 if (!eventsToFire.isEmpty()) {
1272 lock.readLock().lock();
1273 lock.writeLock().unlock();
1274 try {
1275 if (eventsToFire.size() < MAX_SINGLE_EVENTS) {
1276 for (AbstractDatasetChangedEvent event: eventsToFire) {
1277 fireEventToListeners(event);
1278 }
1279 } else if (eventsToFire.size() == MAX_EVENTS) {
1280 fireEventToListeners(new DataChangedEvent(this));
1281 } else {
1282 fireEventToListeners(new DataChangedEvent(this, eventsToFire));
1283 }
1284 } finally {
1285 lock.readLock().unlock();
1286 }
1287 } else {
1288 lock.writeLock().unlock();
1289 }
1290
1291 } else
1292 throw new AssertionError("endUpdate called without beginUpdate");
1293 }
1294
1295 private void fireEventToListeners(AbstractDatasetChangedEvent event) {
1296 for (DataSetListener listener: listeners) {
1297 event.fire(listener);
1298 }
1299 }
1300
1301 private void fireEvent(AbstractDatasetChangedEvent event) {
1302 if (updateCount == 0)
1303 throw new AssertionError("dataset events can be fired only when dataset is locked");
1304 if (cachedEvents.size() < MAX_EVENTS) {
1305 cachedEvents.add(event);
1306 }
1307 }
1308
1309 void firePrimitivesAdded(Collection<? extends OsmPrimitive> added, boolean wasIncomplete) {
1310 fireEvent(new PrimitivesAddedEvent(this, added, wasIncomplete));
1311 }
1312
1313 void firePrimitivesRemoved(Collection<? extends OsmPrimitive> removed, boolean wasComplete) {
1314 fireEvent(new PrimitivesRemovedEvent(this, removed, wasComplete));
1315 }
1316
1317 void fireTagsChanged(OsmPrimitive prim, Map<String, String> originalKeys) {
1318 fireEvent(new TagsChangedEvent(this, prim, originalKeys));
1319 }
1320
1321 void fireRelationMembersChanged(Relation r) {
1322 reindexRelation(r);
1323 fireEvent(new RelationMembersChangedEvent(this, r));
1324 }
1325
1326 void fireNodeMoved(Node node, LatLon newCoor, EastNorth eastNorth) {
1327 reindexNode(node, newCoor, eastNorth);
1328 fireEvent(new NodeMovedEvent(this, node));
1329 }
1330
1331 void fireWayNodesChanged(Way way) {
1332 reindexWay(way);
1333 fireEvent(new WayNodesChangedEvent(this, way));
1334 }
1335
1336 void fireChangesetIdChanged(OsmPrimitive primitive, int oldChangesetId, int newChangesetId) {
1337 fireEvent(new ChangesetIdChangedEvent(this, Collections.singletonList(primitive), oldChangesetId, newChangesetId));
1338 }
1339
1340 void firePrimitiveFlagsChanged(OsmPrimitive primitive) {
1341 fireEvent(new PrimitiveFlagsChangedEvent(this, primitive));
1342 }
1343
1344 void fireHighlightingChanged() {
1345 HighlightUpdateListener.HighlightUpdateEvent e = new HighlightUpdateListener.HighlightUpdateEvent(this);
1346 highlightUpdateListeners.fireEvent(l -> l.highlightUpdated(e));
1347 }
1348
1349 /**
1350 * Invalidates the internal cache of projected east/north coordinates.
1351 *
1352 * This method can be invoked after the globally configured projection method
1353 * changed.
1354 */
1355 public void invalidateEastNorthCache() {
1356 if (Main.getProjection() == null) return; // sanity check
1357 try {
1358 beginUpdate();
1359 for (Node n: Utils.filteredCollection(allPrimitives, Node.class)) {
1360 n.invalidateEastNorthCache();
1361 }
1362 } finally {
1363 endUpdate();
1364 }
1365 }
1366
1367 /**
1368 * Cleanups all deleted primitives (really delete them from the dataset).
1369 */
1370 public void cleanupDeletedPrimitives() {
1371 beginUpdate();
1372 try {
1373 cleanupDeleted(Stream.concat(
1374 nodes.stream(), Stream.concat(ways.stream(), relations.stream())));
1375 } finally {
1376 endUpdate();
1377 }
1378 }
1379
1380 private void cleanupDeleted(Stream<? extends OsmPrimitive> it) {
1381 clearSelection(it
1382 .filter(primitive -> primitive.isDeleted() && (!primitive.isVisible() || primitive.isNew()))
1383 .peek(allPrimitives::remove)
1384 .peek(primitive -> primitive.setDataset(null)));
1385 }
1386
1387 /**
1388 * Removes all primitives from the dataset and resets the currently selected primitives
1389 * to the empty collection. Also notifies selection change listeners if necessary.
1390 *
1391 */
1392 public void clear() {
1393 beginUpdate();
1394 try {
1395 clearSelection();
1396 for (OsmPrimitive primitive:allPrimitives) {
1397 primitive.setDataset(null);
1398 }
1399 nodes.clear();
1400 ways.clear();
1401 relations.clear();
1402 allPrimitives.clear();
1403 } finally {
1404 endUpdate();
1405 }
1406 }
1407
1408 /**
1409 * Marks all "invisible" objects as deleted. These objects should be always marked as
1410 * deleted when downloaded from the server. They can be undeleted later if necessary.
1411 *
1412 */
1413 public void deleteInvisible() {
1414 for (OsmPrimitive primitive:allPrimitives) {
1415 if (!primitive.isVisible()) {
1416 primitive.setDeleted(true);
1417 }
1418 }
1419 }
1420
1421 /**
1422 * Moves all primitives and datasources from DataSet "from" to this DataSet.
1423 * @param from The source DataSet
1424 */
1425 public void mergeFrom(DataSet from) {
1426 mergeFrom(from, null);
1427 }
1428
1429 /**
1430 * Moves all primitives and datasources from DataSet "from" to this DataSet.
1431 * @param from The source DataSet
1432 * @param progressMonitor The progress monitor
1433 */
1434 public synchronized void mergeFrom(DataSet from, ProgressMonitor progressMonitor) {
1435 if (from != null) {
1436 new DataSetMerger(this, from).merge(progressMonitor);
1437 synchronized (from) {
1438 if (!from.dataSources.isEmpty()) {
1439 if (dataSources.addAll(from.dataSources)) {
1440 cachedDataSourceArea = null;
1441 cachedDataSourceBounds = null;
1442 }
1443 from.dataSources.clear();
1444 from.cachedDataSourceArea = null;
1445 from.cachedDataSourceBounds = null;
1446 }
1447 }
1448 }
1449 }
1450
1451 /* --------------------------------------------------------------------------------- */
1452 /* interface ProjectionChangeListner */
1453 /* --------------------------------------------------------------------------------- */
1454 @Override
1455 public void projectionChanged(Projection oldValue, Projection newValue) {
1456 invalidateEastNorthCache();
1457 }
1458
1459 /**
1460 * Returns the data sources bounding box.
1461 * @return the data sources bounding box
1462 */
1463 public synchronized ProjectionBounds getDataSourceBoundingBox() {
1464 BoundingXYVisitor bbox = new BoundingXYVisitor();
1465 for (DataSource source : dataSources) {
1466 bbox.visit(source.bounds);
1467 }
1468 if (bbox.hasExtend()) {
1469 return bbox.getBounds();
1470 }
1471 return null;
1472 }
1473}
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