001// License: GPL. For details, see LICENSE file. 002package org.openstreetmap.josm.gui.history; 003 004import static org.openstreetmap.josm.tools.I18n.tr; 005 006import java.text.DateFormat; 007import java.util.ArrayList; 008import java.util.Collections; 009import java.util.HashSet; 010import java.util.List; 011import java.util.Observable; 012 013import javax.swing.JTable; 014import javax.swing.table.AbstractTableModel; 015import javax.swing.table.TableModel; 016 017import org.openstreetmap.josm.Main; 018import org.openstreetmap.josm.data.osm.Node; 019import org.openstreetmap.josm.data.osm.OsmPrimitive; 020import org.openstreetmap.josm.data.osm.OsmPrimitiveType; 021import org.openstreetmap.josm.data.osm.Relation; 022import org.openstreetmap.josm.data.osm.RelationMember; 023import org.openstreetmap.josm.data.osm.RelationMemberData; 024import org.openstreetmap.josm.data.osm.User; 025import org.openstreetmap.josm.data.osm.UserInfo; 026import org.openstreetmap.josm.data.osm.Way; 027import org.openstreetmap.josm.data.osm.event.AbstractDatasetChangedEvent; 028import org.openstreetmap.josm.data.osm.event.DataChangedEvent; 029import org.openstreetmap.josm.data.osm.event.DataSetListener; 030import org.openstreetmap.josm.data.osm.event.NodeMovedEvent; 031import org.openstreetmap.josm.data.osm.event.PrimitivesAddedEvent; 032import org.openstreetmap.josm.data.osm.event.PrimitivesRemovedEvent; 033import org.openstreetmap.josm.data.osm.event.RelationMembersChangedEvent; 034import org.openstreetmap.josm.data.osm.event.TagsChangedEvent; 035import org.openstreetmap.josm.data.osm.event.WayNodesChangedEvent; 036import org.openstreetmap.josm.data.osm.history.History; 037import org.openstreetmap.josm.data.osm.history.HistoryNode; 038import org.openstreetmap.josm.data.osm.history.HistoryOsmPrimitive; 039import org.openstreetmap.josm.data.osm.history.HistoryRelation; 040import org.openstreetmap.josm.data.osm.history.HistoryWay; 041import org.openstreetmap.josm.data.osm.visitor.AbstractVisitor; 042import org.openstreetmap.josm.gui.JosmUserIdentityManager; 043import org.openstreetmap.josm.gui.MapView; 044import org.openstreetmap.josm.gui.MapView.LayerChangeListener; 045import org.openstreetmap.josm.gui.layer.Layer; 046import org.openstreetmap.josm.gui.layer.OsmDataLayer; 047import org.openstreetmap.josm.io.XmlWriter; 048import org.openstreetmap.josm.tools.CheckParameterUtil; 049 050/** 051 * This is the model used by the history browser. 052 * 053 * The model state consists of the following elements: 054 * <ul> 055 * <li>the {@link History} of a specific {@link OsmPrimitive}</li> 056 * <li>a dedicated version in this {@link History} called the {@link PointInTimeType#REFERENCE_POINT_IN_TIME}</li> 057 * <li>another version in this {@link History} called the {@link PointInTimeType#CURRENT_POINT_IN_TIME}</li> 058 * <ul> 059 * {@link HistoryBrowser} always compares the {@link PointInTimeType#REFERENCE_POINT_IN_TIME} with the 060 * {@link PointInTimeType#CURRENT_POINT_IN_TIME}. 061 062 * This model provides various {@link TableModel}s for {@link JTable}s used in {@link HistoryBrowser}, for 063 * instance: 064 * <ul> 065 * <li>{@link #getTagTableModel(PointInTimeType)} replies a {@link TableModel} for the tags of either of 066 * the two selected versions</li> 067 * <li>{@link #getNodeListTableModel(PointInTimeType)} replies a {@link TableModel} for the list of nodes of 068 * the two selected versions (if the current history provides information about a {@link Way}</li> 069 * <li> {@link #getRelationMemberTableModel(PointInTimeType)} replies a {@link TableModel} for the list of relation 070 * members of the two selected versions (if the current history provides information about a {@link Relation}</li> 071 * </ul> 072 * 073 * @see HistoryBrowser 074 */ 075public class HistoryBrowserModel extends Observable implements LayerChangeListener, DataSetListener { 076 /** the history of an OsmPrimitive */ 077 private History history; 078 private HistoryOsmPrimitive reference; 079 private HistoryOsmPrimitive current; 080 /** 081 * latest isn't a reference of history. It's a clone of the currently edited 082 * {@link OsmPrimitive} in the current edit layer. 083 */ 084 private HistoryOsmPrimitive latest; 085 086 private VersionTableModel versionTableModel; 087 private TagTableModel currentTagTableModel; 088 private TagTableModel referenceTagTableModel; 089 private DiffTableModel currentRelationMemberTableModel; 090 private DiffTableModel referenceRelationMemberTableModel; 091 private DiffTableModel referenceNodeListTableModel; 092 private DiffTableModel currentNodeListTableModel; 093 094 /** 095 * constructor 096 */ 097 public HistoryBrowserModel() { 098 versionTableModel = new VersionTableModel(); 099 currentTagTableModel = new TagTableModel(PointInTimeType.CURRENT_POINT_IN_TIME); 100 referenceTagTableModel = new TagTableModel(PointInTimeType.REFERENCE_POINT_IN_TIME); 101 referenceNodeListTableModel = new DiffTableModel(); 102 currentNodeListTableModel = new DiffTableModel(); 103 currentRelationMemberTableModel = new DiffTableModel(); 104 referenceRelationMemberTableModel = new DiffTableModel(); 105 106 OsmDataLayer editLayer = Main.main.getEditLayer(); 107 if (editLayer != null) { 108 editLayer.data.addDataSetListener(this); 109 } 110 MapView.addLayerChangeListener(this); 111 } 112 113 /** 114 * Creates a new history browser model for a given history. 115 * 116 * @param history the history. Must not be null. 117 * @throws IllegalArgumentException thrown if history is null 118 */ 119 public HistoryBrowserModel(History history) { 120 this(); 121 CheckParameterUtil.ensureParameterNotNull(history, "history"); 122 setHistory(history); 123 } 124 125 /** 126 * replies the history managed by this model 127 * @return the history 128 */ 129 public History getHistory() { 130 return history; 131 } 132 133 protected boolean hasNewNodes(Way way) { 134 for (Node n: way.getNodes()) { 135 if (n.isNew()) return true; 136 } 137 return false; 138 } 139 protected boolean canShowAsLatest(OsmPrimitive primitive) { 140 if (primitive == null) return false; 141 if (primitive.isNew() || !primitive.isUsable()) return false; 142 143 //try creating a history primitive. if that fails, the primitive cannot be used. 144 try { 145 HistoryOsmPrimitive.forOsmPrimitive(primitive); 146 } catch (Exception ign) { 147 return false; 148 } 149 150 if (history == null) return false; 151 // only show latest of the same version if it is modified 152 if (history.getByVersion(primitive.getVersion()) != null) 153 return primitive.isModified(); 154 155 // if latest version from history is higher than a non existing primitive version, 156 // that means this version has been redacted and the primitive cannot be used. 157 if (history.getLatest().getVersion() > primitive.getVersion()) 158 return false; 159 160 // latest has a higher version than one of the primitives 161 // in the history (probably because the history got out of sync 162 // with uploaded data) -> show the primitive as latest 163 return true; 164 } 165 166 /** 167 * sets the history to be managed by this model 168 * 169 * @param history the history 170 * 171 */ 172 public void setHistory(History history) { 173 this.history = history; 174 if (history.getNumVersions() > 0) { 175 HistoryOsmPrimitive newLatest = null; 176 OsmDataLayer editLayer = Main.main.getEditLayer(); 177 if (editLayer != null) { 178 OsmPrimitive p = editLayer.data.getPrimitiveById(history.getId(), history.getType()); 179 if (canShowAsLatest(p)) { 180 newLatest = new HistoryPrimitiveBuilder().build(p); 181 } 182 } 183 if (newLatest == null) { 184 current = history.getLatest(); 185 int prevIndex = history.getNumVersions() - 2; 186 reference = prevIndex < 0 ? history.getEarliest() : history.get(prevIndex); 187 } else { 188 reference = history.getLatest(); 189 current = newLatest; 190 } 191 setLatest(newLatest); 192 } 193 initTagTableModels(); 194 fireModelChange(); 195 } 196 197 protected void fireModelChange() { 198 initNodeListTableModels(); 199 initMemberListTableModels(); 200 setChanged(); 201 notifyObservers(); 202 versionTableModel.fireTableDataChanged(); 203 } 204 205 /** 206 * Replies the table model to be used in a {@link JTable} which 207 * shows the list of versions in this history. 208 * 209 * @return the table model 210 */ 211 public VersionTableModel getVersionTableModel() { 212 return versionTableModel; 213 } 214 215 protected void initTagTableModels() { 216 currentTagTableModel.initKeyList(); 217 referenceTagTableModel.initKeyList(); 218 } 219 220 /** 221 * Should be called everytime either reference of current changes to update the diff. 222 * TODO: Maybe rename to reflect this? eg. updateNodeListTableModels 223 */ 224 protected void initNodeListTableModels() { 225 226 if(current.getType() != OsmPrimitiveType.WAY || reference.getType() != OsmPrimitiveType.WAY) 227 return; 228 TwoColumnDiff diff = new TwoColumnDiff( 229 ((HistoryWay)reference).getNodes().toArray(), 230 ((HistoryWay)current).getNodes().toArray()); 231 referenceNodeListTableModel.setRows(diff.referenceDiff); 232 currentNodeListTableModel.setRows(diff.currentDiff); 233 234 referenceNodeListTableModel.fireTableDataChanged(); 235 currentNodeListTableModel.fireTableDataChanged(); 236 } 237 238 protected void initMemberListTableModels() { 239 if(current.getType() != OsmPrimitiveType.RELATION || reference.getType() != OsmPrimitiveType.RELATION) 240 return; 241 242 TwoColumnDiff diff = new TwoColumnDiff( 243 ((HistoryRelation)reference).getMembers().toArray(), 244 ((HistoryRelation)current).getMembers().toArray()); 245 246 referenceRelationMemberTableModel.setRows(diff.referenceDiff); 247 currentRelationMemberTableModel.setRows(diff.currentDiff); 248 249 currentRelationMemberTableModel.fireTableDataChanged(); 250 referenceRelationMemberTableModel.fireTableDataChanged(); 251 } 252 253 /** 254 * replies the tag table model for the respective point in time 255 * 256 * @param pointInTimeType the type of the point in time (must not be null) 257 * @return the tag table model 258 * @exception IllegalArgumentException thrown, if pointInTimeType is null 259 */ 260 public TagTableModel getTagTableModel(PointInTimeType pointInTimeType) throws IllegalArgumentException { 261 CheckParameterUtil.ensureParameterNotNull(pointInTimeType, "pointInTimeType"); 262 if (pointInTimeType.equals(PointInTimeType.CURRENT_POINT_IN_TIME)) 263 return currentTagTableModel; 264 else if (pointInTimeType.equals(PointInTimeType.REFERENCE_POINT_IN_TIME)) 265 return referenceTagTableModel; 266 267 // should not happen 268 return null; 269 } 270 271 public DiffTableModel getNodeListTableModel(PointInTimeType pointInTimeType) throws IllegalArgumentException { 272 CheckParameterUtil.ensureParameterNotNull(pointInTimeType, "pointInTimeType"); 273 if (pointInTimeType.equals(PointInTimeType.CURRENT_POINT_IN_TIME)) 274 return currentNodeListTableModel; 275 else if (pointInTimeType.equals(PointInTimeType.REFERENCE_POINT_IN_TIME)) 276 return referenceNodeListTableModel; 277 278 // should not happen 279 return null; 280 } 281 282 public DiffTableModel getRelationMemberTableModel(PointInTimeType pointInTimeType) throws IllegalArgumentException { 283 CheckParameterUtil.ensureParameterNotNull(pointInTimeType, "pointInTimeType"); 284 if (pointInTimeType.equals(PointInTimeType.CURRENT_POINT_IN_TIME)) 285 return currentRelationMemberTableModel; 286 else if (pointInTimeType.equals(PointInTimeType.REFERENCE_POINT_IN_TIME)) 287 return referenceRelationMemberTableModel; 288 289 // should not happen 290 return null; 291 } 292 293 /** 294 * Sets the {@link HistoryOsmPrimitive} which plays the role of a reference point 295 * in time (see {@link PointInTimeType}). 296 * 297 * @param reference the reference history primitive. Must not be null. 298 * @throws IllegalArgumentException thrown if reference is null 299 * @throws IllegalStateException thrown if this model isn't a assigned a history yet 300 * @throws IllegalArgumentException if reference isn't an history primitive for the history managed by this mode 301 * 302 * @see #setHistory(History) 303 * @see PointInTimeType 304 */ 305 public void setReferencePointInTime(HistoryOsmPrimitive reference) throws IllegalArgumentException, IllegalStateException{ 306 CheckParameterUtil.ensureParameterNotNull(reference, "reference"); 307 if (history == null) 308 throw new IllegalStateException(tr("History not initialized yet. Failed to set reference primitive.")); 309 if (reference.getId() != history.getId()) 310 throw new IllegalArgumentException(tr("Failed to set reference. Reference ID {0} does not match history ID {1}.", reference.getId(), history.getId())); 311 HistoryOsmPrimitive primitive = history.getByVersion(reference.getVersion()); 312 if (primitive == null) 313 throw new IllegalArgumentException(tr("Failed to set reference. Reference version {0} not available in history.", reference.getVersion())); 314 315 this.reference = reference; 316 initTagTableModels(); 317 initNodeListTableModels(); 318 initMemberListTableModels(); 319 setChanged(); 320 notifyObservers(); 321 } 322 323 /** 324 * Sets the {@link HistoryOsmPrimitive} which plays the role of the current point 325 * in time (see {@link PointInTimeType}). 326 * 327 * @param current the reference history primitive. Must not be {@code null}. 328 * @throws IllegalArgumentException thrown if reference is {@code null} 329 * @throws IllegalStateException thrown if this model isn't a assigned a history yet 330 * @throws IllegalArgumentException if reference isn't an history primitive for the history managed by this mode 331 * 332 * @see #setHistory(History) 333 * @see PointInTimeType 334 */ 335 public void setCurrentPointInTime(HistoryOsmPrimitive current) throws IllegalArgumentException, IllegalStateException{ 336 CheckParameterUtil.ensureParameterNotNull(current, "current"); 337 if (history == null) 338 throw new IllegalStateException(tr("History not initialized yet. Failed to set current primitive.")); 339 if (current.getId() != history.getId()) 340 throw new IllegalArgumentException(tr("Failed to set reference. Reference ID {0} does not match history ID {1}.", current.getId(), history.getId())); 341 HistoryOsmPrimitive primitive = history.getByVersion(current.getVersion()); 342 if (primitive == null) 343 throw new IllegalArgumentException(tr("Failed to set current primitive. Current version {0} not available in history.", current.getVersion())); 344 this.current = current; 345 initTagTableModels(); 346 initNodeListTableModels(); 347 initMemberListTableModels(); 348 setChanged(); 349 notifyObservers(); 350 } 351 352 /** 353 * Replies the history OSM primitive for the {@link PointInTimeType#CURRENT_POINT_IN_TIME} 354 * 355 * @return the history OSM primitive for the {@link PointInTimeType#CURRENT_POINT_IN_TIME} (may be null) 356 */ 357 public HistoryOsmPrimitive getCurrentPointInTime() { 358 return getPointInTime(PointInTimeType.CURRENT_POINT_IN_TIME); 359 } 360 361 /** 362 * Replies the history OSM primitive for the {@link PointInTimeType#REFERENCE_POINT_IN_TIME} 363 * 364 * @return the history OSM primitive for the {@link PointInTimeType#REFERENCE_POINT_IN_TIME} (may be null) 365 */ 366 public HistoryOsmPrimitive getReferencePointInTime() { 367 return getPointInTime(PointInTimeType.REFERENCE_POINT_IN_TIME); 368 } 369 370 /** 371 * replies the history OSM primitive for a given point in time 372 * 373 * @param type the type of the point in time (must not be null) 374 * @return the respective primitive. Can be null. 375 * @exception IllegalArgumentException thrown, if type is null 376 */ 377 public HistoryOsmPrimitive getPointInTime(PointInTimeType type) throws IllegalArgumentException { 378 CheckParameterUtil.ensureParameterNotNull(type, "type"); 379 if (type.equals(PointInTimeType.CURRENT_POINT_IN_TIME)) 380 return current; 381 else if (type.equals(PointInTimeType.REFERENCE_POINT_IN_TIME)) 382 return reference; 383 384 // should not happen 385 return null; 386 } 387 388 /** 389 * Returns true if <code>primitive</code> is the latest primitive 390 * representing the version currently edited in the current data 391 * layer. 392 * 393 * @param primitive the primitive to check 394 * @return true if <code>primitive</code> is the latest primitive 395 */ 396 public boolean isLatest(HistoryOsmPrimitive primitive) { 397 if (primitive == null) return false; 398 return primitive == latest; 399 } 400 401 /** 402 * The table model for the list of versions in the current history 403 * 404 */ 405 public final class VersionTableModel extends AbstractTableModel { 406 407 private VersionTableModel() { 408 } 409 410 @Override 411 public int getRowCount() { 412 if (history == null) 413 return 0; 414 int ret = history.getNumVersions(); 415 if (latest != null) { 416 ret++; 417 } 418 return ret; 419 } 420 421 @Override 422 public Object getValueAt(int row, int column) { 423 switch (column) { 424 case 0: 425 return Long.toString(getPrimitive(row).getVersion()); 426 case 1: 427 return isReferencePointInTime(row); 428 case 2: 429 return isCurrentPointInTime(row); 430 case 3: { 431 HistoryOsmPrimitive p = getPrimitive(row); 432 if (p != null && p.getTimestamp() != null) 433 return DateFormat.getDateTimeInstance(DateFormat.SHORT, DateFormat.SHORT).format(p.getTimestamp()); 434 return null; 435 } 436 case 4: { 437 HistoryOsmPrimitive p = getPrimitive(row); 438 if (p != null) { 439 User user = p.getUser(); 440 if (user != null) 441 return "<html>" + XmlWriter.encode(user.getName(), true) + " <font color=gray>(" + user.getId() + ")</font></html>"; 442 } 443 return null; 444 } 445 } 446 return null; 447 } 448 449 @Override 450 public void setValueAt(Object aValue, int row, int column) { 451 if (!((Boolean) aValue)) return; 452 switch (column) { 453 case 1: 454 setReferencePointInTime(row); 455 break; 456 case 2: 457 setCurrentPointInTime(row); 458 break; 459 default: 460 return; 461 } 462 fireTableDataChanged(); 463 } 464 465 @Override 466 public boolean isCellEditable(int row, int column) { 467 return column >= 1 && column <= 2; 468 } 469 470 public void setReferencePointInTime(int row) { 471 if (history == null) return; 472 if (row == history.getNumVersions()) { 473 if (latest != null) { 474 HistoryBrowserModel.this.setReferencePointInTime(latest); 475 } 476 return; 477 } 478 if (row < 0 || row > history.getNumVersions()) return; 479 HistoryOsmPrimitive reference = history.get(row); 480 HistoryBrowserModel.this.setReferencePointInTime(reference); 481 } 482 483 public void setCurrentPointInTime(int row) { 484 if (history == null) return; 485 if (row == history.getNumVersions()) { 486 if (latest != null) { 487 HistoryBrowserModel.this.setCurrentPointInTime(latest); 488 } 489 return; 490 } 491 if (row < 0 || row > history.getNumVersions()) return; 492 HistoryOsmPrimitive current = history.get(row); 493 HistoryBrowserModel.this.setCurrentPointInTime(current); 494 } 495 496 public boolean isReferencePointInTime(int row) { 497 if (history == null) return false; 498 if (row == history.getNumVersions()) 499 return latest == reference; 500 if (row < 0 || row > history.getNumVersions()) return false; 501 HistoryOsmPrimitive p = history.get(row); 502 return p == reference; 503 } 504 505 public boolean isCurrentPointInTime(int row) { 506 if (history == null) return false; 507 if (row == history.getNumVersions()) 508 return latest == current; 509 if (row < 0 || row > history.getNumVersions()) return false; 510 HistoryOsmPrimitive p = history.get(row); 511 return p == current; 512 } 513 514 public HistoryOsmPrimitive getPrimitive(int row) { 515 if (history == null) 516 return null; 517 return isLatest(row) ? latest : history.get(row); 518 } 519 520 public boolean isLatest(int row) { 521 return row >= history.getNumVersions(); 522 } 523 524 public OsmPrimitive getLatest() { 525 if (latest == null) return null; 526 OsmDataLayer editLayer = Main.main.getEditLayer(); 527 if (editLayer == null) return null; 528 OsmPrimitive p = editLayer.data.getPrimitiveById(latest.getId(), latest.getType()); 529 return p; 530 } 531 532 @Override 533 public int getColumnCount() { 534 return 6; 535 } 536 } 537 538 /** 539 * The table model for the tags of the version at {@link PointInTimeType#REFERENCE_POINT_IN_TIME} 540 * or {@link PointInTimeType#CURRENT_POINT_IN_TIME} 541 * 542 */ 543 public class TagTableModel extends AbstractTableModel { 544 545 private List<String> keys; 546 private PointInTimeType pointInTimeType; 547 548 protected void initKeyList() { 549 HashSet<String> keySet = new HashSet<String>(); 550 if (current != null) { 551 keySet.addAll(current.getTags().keySet()); 552 } 553 if (reference != null) { 554 keySet.addAll(reference.getTags().keySet()); 555 } 556 keys = new ArrayList<String>(keySet); 557 Collections.sort(keys); 558 fireTableDataChanged(); 559 } 560 561 protected TagTableModel(PointInTimeType type) { 562 pointInTimeType = type; 563 initKeyList(); 564 } 565 566 @Override 567 public int getRowCount() { 568 if (keys == null) return 0; 569 return keys.size(); 570 } 571 572 @Override 573 public Object getValueAt(int row, int column) { 574 return keys.get(row); 575 } 576 577 @Override 578 public boolean isCellEditable(int row, int column) { 579 return false; 580 } 581 582 public boolean hasTag(String key) { 583 HistoryOsmPrimitive primitive = getPointInTime(pointInTimeType); 584 if (primitive == null) 585 return false; 586 return primitive.hasTag(key); 587 } 588 589 public String getValue(String key) { 590 HistoryOsmPrimitive primitive = getPointInTime(pointInTimeType); 591 if (primitive == null) 592 return null; 593 return primitive.get(key); 594 } 595 596 public boolean oppositeHasTag(String key) { 597 PointInTimeType opposite = pointInTimeType.opposite(); 598 HistoryOsmPrimitive primitive = getPointInTime(opposite); 599 if (primitive == null) 600 return false; 601 return primitive.hasTag(key); 602 } 603 604 public String getOppositeValue(String key) { 605 PointInTimeType opposite = pointInTimeType.opposite(); 606 HistoryOsmPrimitive primitive = getPointInTime(opposite); 607 if (primitive == null) 608 return null; 609 return primitive.get(key); 610 } 611 612 public boolean hasSameValueAsOpposite(String key) { 613 String value = getValue(key); 614 String oppositeValue = getOppositeValue(key); 615 if (value == null || oppositeValue == null) 616 return false; 617 return value.equals(oppositeValue); 618 } 619 620 public PointInTimeType getPointInTimeType() { 621 return pointInTimeType; 622 } 623 624 public boolean isCurrentPointInTime() { 625 return pointInTimeType.equals(PointInTimeType.CURRENT_POINT_IN_TIME); 626 } 627 628 public boolean isReferencePointInTime() { 629 return pointInTimeType.equals(PointInTimeType.REFERENCE_POINT_IN_TIME); 630 } 631 632 @Override 633 public int getColumnCount() { 634 return 1; 635 } 636 } 637 638 protected void setLatest(HistoryOsmPrimitive latest) { 639 if (latest == null) { 640 if (this.current == this.latest) { 641 this.current = history.getLatest(); 642 } 643 if (this.reference == this.latest) { 644 this.current = history.getLatest(); 645 } 646 this.latest = null; 647 } else { 648 if (this.current == this.latest) { 649 this.current = latest; 650 } 651 if (this.reference == this.latest) { 652 this.reference = latest; 653 } 654 this.latest = latest; 655 } 656 fireModelChange(); 657 } 658 659 /** 660 * Removes this model as listener for data change and layer change 661 * events. 662 * 663 */ 664 public void unlinkAsListener() { 665 OsmDataLayer editLayer = Main.main.getEditLayer(); 666 if (editLayer != null) { 667 editLayer.data.removeDataSetListener(this); 668 } 669 MapView.removeLayerChangeListener(this); 670 } 671 672 /* ---------------------------------------------------------------------- */ 673 /* DataSetListener */ 674 /* ---------------------------------------------------------------------- */ 675 @Override 676 public void nodeMoved(NodeMovedEvent event) { 677 Node node = event.getNode(); 678 if (!node.isNew() && node.getId() == history.getId()) { 679 setLatest(new HistoryPrimitiveBuilder().build(node)); 680 } 681 } 682 683 @Override 684 public void primitivesAdded(PrimitivesAddedEvent event) { 685 for (OsmPrimitive p: event.getPrimitives()) { 686 if (canShowAsLatest(p)) { 687 setLatest(new HistoryPrimitiveBuilder().build(p)); 688 } 689 } 690 } 691 692 @Override 693 public void primitivesRemoved(PrimitivesRemovedEvent event) { 694 for (OsmPrimitive p: event.getPrimitives()) { 695 if (!p.isNew() && p.getId() == history.getId()) { 696 setLatest(null); 697 } 698 } 699 } 700 701 @Override 702 public void relationMembersChanged(RelationMembersChangedEvent event) { 703 Relation r = event.getRelation(); 704 if (!r.isNew() && r.getId() == history.getId()) { 705 setLatest(new HistoryPrimitiveBuilder().build(r)); 706 } 707 } 708 709 @Override 710 public void tagsChanged(TagsChangedEvent event) { 711 OsmPrimitive prim = event.getPrimitive(); 712 if (!prim.isNew() && prim.getId() == history.getId()) { 713 setLatest(new HistoryPrimitiveBuilder().build(prim)); 714 } 715 } 716 717 @Override 718 public void wayNodesChanged(WayNodesChangedEvent event) { 719 Way way = event.getChangedWay(); 720 if (!way.isNew() && way.getId() == history.getId()) { 721 setLatest(new HistoryPrimitiveBuilder().build(way)); 722 } 723 } 724 725 @Override 726 public void dataChanged(DataChangedEvent event) { 727 OsmPrimitive primitive = event.getDataset().getPrimitiveById(history.getId(), history.getType()); 728 HistoryOsmPrimitive latest; 729 if (canShowAsLatest(primitive)) { 730 latest = new HistoryPrimitiveBuilder().build(primitive); 731 } else { 732 latest = null; 733 } 734 setLatest(latest); 735 fireModelChange(); 736 } 737 738 @Override 739 public void otherDatasetChange(AbstractDatasetChangedEvent event) { 740 // Irrelevant 741 } 742 743 /* ---------------------------------------------------------------------- */ 744 /* LayerChangeListener */ 745 /* ---------------------------------------------------------------------- */ 746 @Override 747 public void activeLayerChange(Layer oldLayer, Layer newLayer) { 748 if (oldLayer instanceof OsmDataLayer) { 749 OsmDataLayer l = (OsmDataLayer)oldLayer; 750 l.data.removeDataSetListener(this); 751 } 752 if (!(newLayer instanceof OsmDataLayer)) { 753 latest = null; 754 fireModelChange(); 755 return; 756 } 757 OsmDataLayer l = (OsmDataLayer)newLayer; 758 l.data.addDataSetListener(this); 759 OsmPrimitive primitive = l.data.getPrimitiveById(history.getId(), history.getType()); 760 HistoryOsmPrimitive latest; 761 if (canShowAsLatest(primitive)) { 762 latest = new HistoryPrimitiveBuilder().build(primitive); 763 } else { 764 latest = null; 765 } 766 setLatest(latest); 767 fireModelChange(); 768 } 769 770 @Override 771 public void layerAdded(Layer newLayer) {} 772 @Override 773 public void layerRemoved(Layer oldLayer) {} 774 775 /** 776 * Creates a {@link HistoryOsmPrimitive} from a {@link OsmPrimitive} 777 * 778 */ 779 static class HistoryPrimitiveBuilder extends AbstractVisitor { 780 private HistoryOsmPrimitive clone; 781 782 @Override 783 public void visit(Node n) { 784 clone = new HistoryNode(n.getId(), n.getVersion(), n.isVisible(), getCurrentUser(), 0, null, n.getCoor(), false); 785 clone.setTags(n.getKeys()); 786 } 787 788 @Override 789 public void visit(Relation r) { 790 clone = new HistoryRelation(r.getId(), r.getVersion(), r.isVisible(), getCurrentUser(), 0, null, false); 791 clone.setTags(r.getKeys()); 792 HistoryRelation hr = (HistoryRelation)clone; 793 for (RelationMember rm : r.getMembers()) { 794 hr.addMember(new RelationMemberData(rm.getRole(), rm.getType(), rm.getUniqueId())); 795 } 796 } 797 798 @Override 799 public void visit(Way w) { 800 clone = new HistoryWay(w.getId(), w.getVersion(), w.isVisible(), getCurrentUser(), 0, null, false); 801 clone.setTags(w.getKeys()); 802 for (Node n: w.getNodes()) { 803 ((HistoryWay)clone).addNode(n.getUniqueId()); 804 } 805 } 806 807 private User getCurrentUser() { 808 UserInfo info = JosmUserIdentityManager.getInstance().getUserInfo(); 809 return info == null ? User.getAnonymous() : User.createOsmUser(info.getId(), info.getDisplayName()); 810 } 811 812 public HistoryOsmPrimitive build(OsmPrimitive primitive) { 813 primitive.accept(this); 814 return clone; 815 } 816 } 817}