source: josm/trunk/src/org/openstreetmap/josm/actions/mapmode/ImproveWayAccuracyAction.java@ 14654

Last change on this file since 14654 was 14654, checked in by simon04, 5 years ago

Deprecate OsmPrimitive.getFilteredList/getFilteredSet in favour of Stream

Most use-cases involved filtering referring primitives. This can now be
accomplished using OsmPrimitive.referrers involving the Stream API and
thus avoids creation of intermediate collections.
  • Property svn:eol-style set to native
File size: 25.4 KB
Line 
1// License: GPL. For details, see LICENSE file.
2package org.openstreetmap.josm.actions.mapmode;
3
4import static org.openstreetmap.josm.tools.I18n.marktr;
5import static org.openstreetmap.josm.tools.I18n.tr;
6import static org.openstreetmap.josm.tools.I18n.trn;
7
8import java.awt.BasicStroke;
9import java.awt.Color;
10import java.awt.Cursor;
11import java.awt.Graphics2D;
12import java.awt.Point;
13import java.awt.event.KeyEvent;
14import java.awt.event.MouseEvent;
15import java.util.ArrayList;
16import java.util.Collection;
17import java.util.Collections;
18import java.util.LinkedList;
19import java.util.List;
20import java.util.stream.Collectors;
21
22import javax.swing.JOptionPane;
23
24import org.openstreetmap.josm.command.AddCommand;
25import org.openstreetmap.josm.command.ChangeCommand;
26import org.openstreetmap.josm.command.Command;
27import org.openstreetmap.josm.command.DeleteCommand;
28import org.openstreetmap.josm.command.MoveCommand;
29import org.openstreetmap.josm.command.SequenceCommand;
30import org.openstreetmap.josm.data.Bounds;
31import org.openstreetmap.josm.data.UndoRedoHandler;
32import org.openstreetmap.josm.data.coor.EastNorth;
33import org.openstreetmap.josm.data.osm.DataSelectionListener;
34import org.openstreetmap.josm.data.osm.DataSet;
35import org.openstreetmap.josm.data.osm.Node;
36import org.openstreetmap.josm.data.osm.OsmPrimitive;
37import org.openstreetmap.josm.data.osm.Way;
38import org.openstreetmap.josm.data.osm.WaySegment;
39import org.openstreetmap.josm.data.osm.event.SelectionEventManager;
40import org.openstreetmap.josm.data.preferences.CachingProperty;
41import org.openstreetmap.josm.data.preferences.IntegerProperty;
42import org.openstreetmap.josm.data.preferences.NamedColorProperty;
43import org.openstreetmap.josm.data.preferences.StrokeProperty;
44import org.openstreetmap.josm.gui.MainApplication;
45import org.openstreetmap.josm.gui.MapFrame;
46import org.openstreetmap.josm.gui.MapView;
47import org.openstreetmap.josm.gui.draw.MapViewPath;
48import org.openstreetmap.josm.gui.draw.SymbolShape;
49import org.openstreetmap.josm.gui.layer.AbstractMapViewPaintable;
50import org.openstreetmap.josm.gui.layer.Layer;
51import org.openstreetmap.josm.gui.util.ModifierExListener;
52import org.openstreetmap.josm.tools.ImageProvider;
53import org.openstreetmap.josm.tools.Logging;
54import org.openstreetmap.josm.tools.Pair;
55import org.openstreetmap.josm.tools.Shortcut;
56
57/**
58 * A special map mode that is optimized for improving way geometry.
59 * (by efficiently moving, adding and deleting way-nodes)
60 *
61 * @author Alexander Kachkaev <alexander@kachkaev.ru>, 2011
62 */
63public class ImproveWayAccuracyAction extends MapMode implements DataSelectionListener, ModifierExListener {
64
65 private static final String CROSSHAIR = /* ICON(cursor/)*/ "crosshair";
66
67 enum State {
68 SELECTING, IMPROVING
69 }
70
71 private State state;
72
73 private MapView mv;
74
75 private static final long serialVersionUID = 42L;
76
77 private transient Way targetWay;
78 private transient Node candidateNode;
79 private transient WaySegment candidateSegment;
80
81 private Point mousePos;
82 private boolean dragging;
83
84 private final Cursor cursorSelect = ImageProvider.getCursor(/* ICON(cursor/)*/ "normal", /* ICON(cursor/modifier/)*/ "mode");
85 private final Cursor cursorSelectHover = ImageProvider.getCursor(/* ICON(cursor/)*/ "hand", /* ICON(cursor/modifier/)*/ "mode");
86 private final Cursor cursorImprove = ImageProvider.getCursor(CROSSHAIR, null);
87 private final Cursor cursorImproveAdd = ImageProvider.getCursor(CROSSHAIR, /* ICON(cursor/modifier/)*/ "addnode");
88 private final Cursor cursorImproveDelete = ImageProvider.getCursor(CROSSHAIR, /* ICON(cursor/modifier/)*/ "delete_node");
89 private final Cursor cursorImproveAddLock = ImageProvider.getCursor(CROSSHAIR, /* ICON(cursor/modifier/)*/ "add_node_lock");
90 private final Cursor cursorImproveLock = ImageProvider.getCursor(CROSSHAIR, /* ICON(cursor/modifier/)*/ "lock");
91
92 private Color guideColor;
93
94 private static final CachingProperty<BasicStroke> SELECT_TARGET_WAY_STROKE
95 = new StrokeProperty("improvewayaccuracy.stroke.select-target", "2").cached();
96 private static final CachingProperty<BasicStroke> MOVE_NODE_STROKE
97 = new StrokeProperty("improvewayaccuracy.stroke.move-node", "1 6").cached();
98 private static final CachingProperty<BasicStroke> MOVE_NODE_INTERSECTING_STROKE
99 = new StrokeProperty("improvewayaccuracy.stroke.move-node-intersecting", "1 2 6").cached();
100 private static final CachingProperty<BasicStroke> ADD_NODE_STROKE
101 = new StrokeProperty("improvewayaccuracy.stroke.add-node", "1").cached();
102 private static final CachingProperty<BasicStroke> DELETE_NODE_STROKE
103 = new StrokeProperty("improvewayaccuracy.stroke.delete-node", "1").cached();
104 private static final CachingProperty<Integer> DOT_SIZE
105 = new IntegerProperty("improvewayaccuracy.dot-size", 6).cached();
106
107 private boolean selectionChangedBlocked;
108
109 protected String oldModeHelpText;
110
111 private final transient AbstractMapViewPaintable temporaryLayer = new AbstractMapViewPaintable() {
112 @Override
113 public void paint(Graphics2D g, MapView mv, Bounds bbox) {
114 ImproveWayAccuracyAction.this.paint(g, mv, bbox);
115 }
116 };
117
118 /**
119 * Constructs a new {@code ImproveWayAccuracyAction}.
120 * @since 11713
121 */
122 public ImproveWayAccuracyAction() {
123 super(tr("Improve Way Accuracy"), "improvewayaccuracy",
124 tr("Improve Way Accuracy mode"),
125 Shortcut.registerShortcut("mapmode:ImproveWayAccuracy",
126 tr("Mode: {0}", tr("Improve Way Accuracy")),
127 KeyEvent.VK_W, Shortcut.DIRECT), Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR));
128
129 readPreferences();
130 }
131
132 // -------------------------------------------------------------------------
133 // Mode methods
134 // -------------------------------------------------------------------------
135 @Override
136 public void enterMode() {
137 if (!isEnabled()) {
138 return;
139 }
140 super.enterMode();
141 readPreferences();
142
143 MapFrame map = MainApplication.getMap();
144 mv = map.mapView;
145 mousePos = null;
146 oldModeHelpText = "";
147
148 if (getLayerManager().getEditDataSet() == null) {
149 return;
150 }
151
152 updateStateByCurrentSelection();
153
154 map.mapView.addMouseListener(this);
155 map.mapView.addMouseMotionListener(this);
156 map.mapView.addTemporaryLayer(temporaryLayer);
157 SelectionEventManager.getInstance().addSelectionListener(this);
158
159 map.keyDetector.addModifierExListener(this);
160 }
161
162 @Override
163 protected void readPreferences() {
164 guideColor = new NamedColorProperty(marktr("improve way accuracy helper line"), Color.RED).get();
165 }
166
167 @Override
168 public void exitMode() {
169 super.exitMode();
170
171 MapFrame map = MainApplication.getMap();
172 map.mapView.removeMouseListener(this);
173 map.mapView.removeMouseMotionListener(this);
174 map.mapView.removeTemporaryLayer(temporaryLayer);
175 SelectionEventManager.getInstance().removeSelectionListener(this);
176
177 map.keyDetector.removeModifierExListener(this);
178 temporaryLayer.invalidate();
179 }
180
181 @Override
182 protected void updateStatusLine() {
183 String newModeHelpText = getModeHelpText();
184 if (!newModeHelpText.equals(oldModeHelpText)) {
185 oldModeHelpText = newModeHelpText;
186 MapFrame map = MainApplication.getMap();
187 map.statusLine.setHelpText(newModeHelpText);
188 map.statusLine.repaint();
189 }
190 }
191
192 @Override
193 public String getModeHelpText() {
194 if (state == State.SELECTING) {
195 if (targetWay != null) {
196 return tr("Click on the way to start improving its shape.");
197 } else {
198 return tr("Select a way that you want to make more accurate.");
199 }
200 } else {
201 if (ctrl) {
202 return tr("Click to add a new node. Release Ctrl to move existing nodes or hold Alt to delete.");
203 } else if (alt) {
204 return tr("Click to delete the highlighted node. Release Alt to move existing nodes or hold Ctrl to add new nodes.");
205 } else {
206 return tr("Click to move the highlighted node. Hold Ctrl to add new nodes, or Alt to delete.");
207 }
208 }
209 }
210
211 @Override
212 public boolean layerIsSupported(Layer l) {
213 return isEditableDataLayer(l);
214 }
215
216 @Override
217 protected void updateEnabledState() {
218 setEnabled(getLayerManager().getEditLayer() != null);
219 }
220
221 // -------------------------------------------------------------------------
222 // MapViewPaintable methods
223 // -------------------------------------------------------------------------
224 /**
225 * Redraws temporary layer. Highlights targetWay in select mode. Draws
226 * preview lines in improve mode and highlights the candidateNode
227 * @param g The graphics
228 * @param mv The map view
229 * @param bbox The bounding box
230 */
231 public void paint(Graphics2D g, MapView mv, Bounds bbox) {
232 if (mousePos == null) {
233 return;
234 }
235
236 g.setColor(guideColor);
237
238 if (state == State.SELECTING && targetWay != null) {
239 // Highlighting the targetWay in Selecting state
240 // Non-native highlighting is used, because sometimes highlighted
241 // segments are covered with others, which is bad.
242 BasicStroke stroke = SELECT_TARGET_WAY_STROKE.get();
243 g.setStroke(stroke);
244
245 List<Node> nodes = targetWay.getNodes();
246
247 g.draw(new MapViewPath(mv).append(nodes, false).computeClippedLine(stroke));
248
249 } else if (state == State.IMPROVING) {
250 // Drawing preview lines and highlighting the node
251 // that is going to be moved.
252 // Non-native highlighting is used here as well.
253
254 // Finding endpoints
255 Node p1 = null;
256 Node p2 = null;
257 if (ctrl && candidateSegment != null) {
258 g.setStroke(ADD_NODE_STROKE.get());
259 try {
260 p1 = candidateSegment.getFirstNode();
261 p2 = candidateSegment.getSecondNode();
262 } catch (ArrayIndexOutOfBoundsException e) {
263 Logging.error(e);
264 }
265 } else if (!alt && !ctrl && candidateNode != null) {
266 g.setStroke(MOVE_NODE_STROKE.get());
267 List<Pair<Node, Node>> wpps = targetWay.getNodePairs(false);
268 for (Pair<Node, Node> wpp : wpps) {
269 if (wpp.a == candidateNode) {
270 p1 = wpp.b;
271 }
272 if (wpp.b == candidateNode) {
273 p2 = wpp.a;
274 }
275 if (p1 != null && p2 != null) {
276 break;
277 }
278 }
279 } else if (alt && !ctrl && candidateNode != null) {
280 g.setStroke(DELETE_NODE_STROKE.get());
281 List<Node> nodes = targetWay.getNodes();
282 int index = nodes.indexOf(candidateNode);
283
284 // Only draw line if node is not first and/or last
285 if (index > 0 && index < (nodes.size() - 1)) {
286 p1 = nodes.get(index - 1);
287 p2 = nodes.get(index + 1);
288 } else if (targetWay.isClosed()) {
289 p1 = targetWay.getNode(1);
290 p2 = targetWay.getNode(nodes.size() - 2);
291 }
292 // TODO: indicate what part that will be deleted? (for end nodes)
293 }
294
295
296 // Drawing preview lines
297 MapViewPath b = new MapViewPath(mv);
298 if (alt && !ctrl) {
299 // In delete mode
300 if (p1 != null && p2 != null) {
301 b.moveTo(p1);
302 b.lineTo(p2);
303 }
304 } else {
305 // In add or move mode
306 if (p1 != null) {
307 b.moveTo(mousePos.x, mousePos.y);
308 b.lineTo(p1);
309 }
310 if (p2 != null) {
311 b.moveTo(mousePos.x, mousePos.y);
312 b.lineTo(p2);
313 }
314 }
315 g.draw(b.computeClippedLine(g.getStroke()));
316
317 // Highlighting candidateNode
318 if (candidateNode != null) {
319 p1 = candidateNode;
320 g.fill(new MapViewPath(mv).shapeAround(p1, SymbolShape.SQUARE, DOT_SIZE.get()));
321 }
322
323 if (!alt && !ctrl && candidateNode != null) {
324 b.reset();
325 drawIntersectingWayHelperLines(mv, b);
326 g.setStroke(MOVE_NODE_INTERSECTING_STROKE.get());
327 g.draw(b.computeClippedLine(g.getStroke()));
328 }
329
330 }
331 }
332
333 protected void drawIntersectingWayHelperLines(MapView mv, MapViewPath b) {
334 for (final OsmPrimitive referrer : candidateNode.getReferrers()) {
335 if (!(referrer instanceof Way) || targetWay.equals(referrer)) {
336 continue;
337 }
338 final List<Node> nodes = ((Way) referrer).getNodes();
339 for (int i = 0; i < nodes.size(); i++) {
340 if (!candidateNode.equals(nodes.get(i))) {
341 continue;
342 }
343 if (i > 0) {
344 b.moveTo(mousePos.x, mousePos.y);
345 b.lineTo(nodes.get(i - 1));
346 }
347 if (i < nodes.size() - 1) {
348 b.moveTo(mousePos.x, mousePos.y);
349 b.lineTo(nodes.get(i + 1));
350 }
351 }
352 }
353 }
354
355 // -------------------------------------------------------------------------
356 // Event handlers
357 // -------------------------------------------------------------------------
358 @Override
359 public void modifiersExChanged(int modifiers) {
360 if (!MainApplication.isDisplayingMapView() || !MainApplication.getMap().mapView.isActiveLayerDrawable()) {
361 return;
362 }
363 updateKeyModifiersEx(modifiers);
364 updateCursorDependentObjectsIfNeeded();
365 updateCursor();
366 updateStatusLine();
367 temporaryLayer.invalidate();
368 }
369
370 @Override
371 public void selectionChanged(SelectionChangeEvent event) {
372 if (selectionChangedBlocked) {
373 return;
374 }
375 updateStateByCurrentSelection();
376 }
377
378 @Override
379 public void mouseDragged(MouseEvent e) {
380 dragging = true;
381 mouseMoved(e);
382 }
383
384 @Override
385 public void mouseMoved(MouseEvent e) {
386 if (!isEnabled()) {
387 return;
388 }
389
390 mousePos = e.getPoint();
391
392 updateKeyModifiers(e);
393 updateCursorDependentObjectsIfNeeded();
394 updateCursor();
395 updateStatusLine();
396 temporaryLayer.invalidate();
397 }
398
399 @Override
400 public void mouseReleased(MouseEvent e) {
401 dragging = false;
402 if (!isEnabled() || e.getButton() != MouseEvent.BUTTON1) {
403 return;
404 }
405
406 DataSet ds = getLayerManager().getEditDataSet();
407 updateKeyModifiers(e);
408 mousePos = e.getPoint();
409
410 if (state == State.SELECTING) {
411 if (targetWay != null) {
412 ds.setSelected(targetWay.getPrimitiveId());
413 updateStateByCurrentSelection();
414 }
415 } else if (state == State.IMPROVING) {
416 // Checking if the new coordinate is outside of the world
417 if (mv.getLatLon(mousePos.x, mousePos.y).isOutSideWorld()) {
418 JOptionPane.showMessageDialog(MainApplication.getMainFrame(),
419 tr("Cannot add a node outside of the world."),
420 tr("Warning"), JOptionPane.WARNING_MESSAGE);
421 return;
422 }
423
424 if (ctrl && !alt && candidateSegment != null) {
425 // Adding a new node to the highlighted segment
426 // Important: If there are other ways containing the same
427 // segment, a node must added to all of that ways.
428 Collection<Command> virtualCmds = new LinkedList<>();
429
430 // Creating a new node
431 Node virtualNode = new Node(mv.getEastNorth(mousePos.x,
432 mousePos.y));
433 virtualCmds.add(new AddCommand(ds, virtualNode));
434
435 // Looking for candidateSegment copies in ways that are referenced by candidateSegment nodes
436 List<Way> firstNodeWays = candidateSegment.getFirstNode().referrers(Way.class).collect(Collectors.toList());
437 List<Way> secondNodeWays = candidateSegment.getFirstNode().referrers(Way.class).collect(Collectors.toList());
438
439 Collection<WaySegment> virtualSegments = new LinkedList<>();
440 for (Way w : firstNodeWays) {
441 List<Pair<Node, Node>> wpps = w.getNodePairs(true);
442 for (Way w2 : secondNodeWays) {
443 if (!w.equals(w2)) {
444 continue;
445 }
446 // A way is referenced in both nodes.
447 // Checking if there is such segment
448 int i = -1;
449 for (Pair<Node, Node> wpp : wpps) {
450 ++i;
451 boolean ab = wpp.a.equals(candidateSegment.getFirstNode())
452 && wpp.b.equals(candidateSegment.getSecondNode());
453 boolean ba = wpp.b.equals(candidateSegment.getFirstNode())
454 && wpp.a.equals(candidateSegment.getSecondNode());
455 if (ab || ba) {
456 virtualSegments.add(new WaySegment(w, i));
457 }
458 }
459 }
460 }
461
462 // Adding the node to all segments found
463 for (WaySegment virtualSegment : virtualSegments) {
464 Way w = virtualSegment.way;
465 Way wnew = new Way(w);
466 wnew.addNode(virtualSegment.lowerIndex + 1, virtualNode);
467 virtualCmds.add(new ChangeCommand(w, wnew));
468 }
469
470 // Finishing the sequence command
471 String text = trn("Add a new node to way",
472 "Add a new node to {0} ways",
473 virtualSegments.size(), virtualSegments.size());
474
475 UndoRedoHandler.getInstance().add(new SequenceCommand(text, virtualCmds));
476
477 } else if (alt && !ctrl && candidateNode != null) {
478 // Deleting the highlighted node
479
480 //check to see if node is in use by more than one object
481 long referrersCount = candidateNode.referrers(OsmPrimitive.class).count();
482 long referrerWayCount = candidateNode.referrers(Way.class).count();
483 if (referrersCount != 1 || referrerWayCount != 1) {
484 // detach node from way
485 final Way newWay = new Way(targetWay);
486 final List<Node> nodes = newWay.getNodes();
487 nodes.remove(candidateNode);
488 newWay.setNodes(nodes);
489 if (nodes.size() < 2) {
490 final Command deleteCmd = DeleteCommand.delete(Collections.singleton(targetWay), true);
491 if (deleteCmd != null) {
492 UndoRedoHandler.getInstance().add(deleteCmd);
493 }
494 } else {
495 UndoRedoHandler.getInstance().add(new ChangeCommand(targetWay, newWay));
496 }
497 } else if (candidateNode.isTagged()) {
498 JOptionPane.showMessageDialog(MainApplication.getMainFrame(),
499 tr("Cannot delete node that has tags"),
500 tr("Error"), JOptionPane.ERROR_MESSAGE);
501 } else {
502 final Command deleteCmd = DeleteCommand.delete(Collections.singleton(candidateNode), true);
503 if (deleteCmd != null) {
504 UndoRedoHandler.getInstance().add(deleteCmd);
505 }
506 }
507
508 } else if (candidateNode != null) {
509 // Moving the highlighted node
510 EastNorth nodeEN = candidateNode.getEastNorth();
511 EastNorth cursorEN = mv.getEastNorth(mousePos.x, mousePos.y);
512
513 UndoRedoHandler.getInstance().add(
514 new MoveCommand(candidateNode, cursorEN.east() - nodeEN.east(), cursorEN.north() - nodeEN.north()));
515 }
516 }
517
518 mousePos = null;
519 updateCursor();
520 updateStatusLine();
521 temporaryLayer.invalidate();
522 }
523
524 @Override
525 public void mouseExited(MouseEvent e) {
526 if (!isEnabled()) {
527 return;
528 }
529
530 if (!dragging) {
531 mousePos = null;
532 }
533 temporaryLayer.invalidate();
534 }
535
536 // -------------------------------------------------------------------------
537 // Custom methods
538 // -------------------------------------------------------------------------
539 /**
540 * Sets new cursor depending on state, mouse position
541 */
542 private void updateCursor() {
543 if (!isEnabled()) {
544 mv.setNewCursor(null, this);
545 return;
546 }
547
548 if (state == State.SELECTING) {
549 mv.setNewCursor(targetWay == null ? cursorSelect
550 : cursorSelectHover, this);
551 } else if (state == State.IMPROVING) {
552 if (alt && !ctrl) {
553 mv.setNewCursor(cursorImproveDelete, this);
554 } else if (shift || dragging) {
555 if (ctrl) {
556 mv.setNewCursor(cursorImproveAddLock, this);
557 } else {
558 mv.setNewCursor(cursorImproveLock, this);
559 }
560 } else if (ctrl && !alt) {
561 mv.setNewCursor(cursorImproveAdd, this);
562 } else {
563 mv.setNewCursor(cursorImprove, this);
564 }
565 }
566 }
567
568 /**
569 * Updates these objects under cursor: targetWay, candidateNode,
570 * candidateSegment
571 */
572 public void updateCursorDependentObjectsIfNeeded() {
573 if (state == State.IMPROVING && (shift || dragging)
574 && !(candidateNode == null && candidateSegment == null)) {
575 return;
576 }
577
578 if (mousePos == null) {
579 candidateNode = null;
580 candidateSegment = null;
581 return;
582 }
583
584 if (state == State.SELECTING) {
585 targetWay = ImproveWayAccuracyHelper.findWay(mv, mousePos);
586 } else if (state == State.IMPROVING) {
587 if (ctrl && !alt) {
588 candidateSegment = ImproveWayAccuracyHelper.findCandidateSegment(mv,
589 targetWay, mousePos);
590 candidateNode = null;
591 } else {
592 candidateNode = ImproveWayAccuracyHelper.findCandidateNode(mv,
593 targetWay, mousePos);
594 candidateSegment = null;
595 }
596 }
597 }
598
599 /**
600 * Switches to Selecting state
601 */
602 public void startSelecting() {
603 state = State.SELECTING;
604
605 targetWay = null;
606
607 temporaryLayer.invalidate();
608 updateStatusLine();
609 }
610
611 /**
612 * Switches to Improving state
613 *
614 * @param targetWay Way that is going to be improved
615 */
616 public void startImproving(Way targetWay) {
617 state = State.IMPROVING;
618
619 DataSet ds = getLayerManager().getEditDataSet();
620 Collection<OsmPrimitive> currentSelection = ds.getSelected();
621 if (currentSelection.size() != 1
622 || !currentSelection.iterator().next().equals(targetWay)) {
623 selectionChangedBlocked = true;
624 ds.clearSelection();
625 ds.setSelected(targetWay.getPrimitiveId());
626 selectionChangedBlocked = false;
627 }
628
629 this.targetWay = targetWay;
630 this.candidateNode = null;
631 this.candidateSegment = null;
632
633 temporaryLayer.invalidate();
634 updateStatusLine();
635 }
636
637 /**
638 * Updates the state according to the current selection. Goes to Improve
639 * state if a single way or node is selected. Extracts a way by a node in
640 * the second case.
641 */
642 private void updateStateByCurrentSelection() {
643 final List<Node> nodeList = new ArrayList<>();
644 final List<Way> wayList = new ArrayList<>();
645 final DataSet ds = getLayerManager().getEditDataSet();
646 if (ds != null) {
647 final Collection<OsmPrimitive> sel = ds.getSelected();
648
649 // Collecting nodes and ways from the selection
650 for (OsmPrimitive p : sel) {
651 if (p instanceof Way) {
652 wayList.add((Way) p);
653 }
654 if (p instanceof Node) {
655 nodeList.add((Node) p);
656 }
657 }
658
659 if (wayList.size() == 1) {
660 // Starting improving the single selected way
661 startImproving(wayList.get(0));
662 return;
663 } else if (nodeList.size() == 1) {
664 // Starting improving the only way of the single selected node
665 List<OsmPrimitive> r = nodeList.get(0).getReferrers();
666 if (r.size() == 1 && (r.get(0) instanceof Way)) {
667 startImproving((Way) r.get(0));
668 return;
669 }
670 }
671 }
672
673 // Starting selecting by default
674 startSelecting();
675 }
676}
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