001// License: GPL. For details, see LICENSE file. 002package org.openstreetmap.josm.actions.mapmode; 003 004import static org.openstreetmap.josm.gui.help.HelpUtil.ht; 005import static org.openstreetmap.josm.tools.I18n.tr; 006import static org.openstreetmap.josm.tools.I18n.trn; 007 008import java.awt.Cursor; 009import java.awt.Point; 010import java.awt.Rectangle; 011import java.awt.event.KeyEvent; 012import java.awt.event.MouseEvent; 013import java.awt.geom.Point2D; 014import java.util.Collection; 015import java.util.Collections; 016import java.util.HashSet; 017import java.util.Iterator; 018import java.util.LinkedList; 019import java.util.Optional; 020import java.util.Set; 021 022import javax.swing.JOptionPane; 023 024import org.openstreetmap.josm.actions.MergeNodesAction; 025import org.openstreetmap.josm.command.AddCommand; 026import org.openstreetmap.josm.command.ChangeCommand; 027import org.openstreetmap.josm.command.Command; 028import org.openstreetmap.josm.command.MoveCommand; 029import org.openstreetmap.josm.command.RotateCommand; 030import org.openstreetmap.josm.command.ScaleCommand; 031import org.openstreetmap.josm.command.SequenceCommand; 032import org.openstreetmap.josm.data.UndoRedoHandler; 033import org.openstreetmap.josm.data.coor.EastNorth; 034import org.openstreetmap.josm.data.coor.LatLon; 035import org.openstreetmap.josm.data.osm.DataSet; 036import org.openstreetmap.josm.data.osm.Node; 037import org.openstreetmap.josm.data.osm.OsmData; 038import org.openstreetmap.josm.data.osm.OsmPrimitive; 039import org.openstreetmap.josm.data.osm.Way; 040import org.openstreetmap.josm.data.osm.WaySegment; 041import org.openstreetmap.josm.data.osm.visitor.AllNodesVisitor; 042import org.openstreetmap.josm.data.osm.visitor.paint.WireframeMapRenderer; 043import org.openstreetmap.josm.gui.ExtendedDialog; 044import org.openstreetmap.josm.gui.MainApplication; 045import org.openstreetmap.josm.gui.MapFrame; 046import org.openstreetmap.josm.gui.MapView; 047import org.openstreetmap.josm.gui.MapViewState.MapViewPoint; 048import org.openstreetmap.josm.gui.SelectionManager; 049import org.openstreetmap.josm.gui.SelectionManager.SelectionEnded; 050import org.openstreetmap.josm.gui.layer.Layer; 051import org.openstreetmap.josm.gui.layer.OsmDataLayer; 052import org.openstreetmap.josm.gui.util.GuiHelper; 053import org.openstreetmap.josm.gui.util.KeyPressReleaseListener; 054import org.openstreetmap.josm.gui.util.ModifierExListener; 055import org.openstreetmap.josm.spi.preferences.Config; 056import org.openstreetmap.josm.tools.ImageProvider; 057import org.openstreetmap.josm.tools.Logging; 058import org.openstreetmap.josm.tools.Pair; 059import org.openstreetmap.josm.tools.PlatformManager; 060import org.openstreetmap.josm.tools.Shortcut; 061 062/** 063 * Move is an action that can move all kind of OsmPrimitives (except keys for now). 064 * 065 * If an selected object is under the mouse when dragging, move all selected objects. 066 * If an unselected object is under the mouse when dragging, it becomes selected 067 * and will be moved. 068 * If no object is under the mouse, move all selected objects (if any) 069 * 070 * On Mac OS X, Ctrl + mouse button 1 simulates right click (map move), so the 071 * feature "selection remove" is disabled on this platform. 072 */ 073public class SelectAction extends MapMode implements ModifierExListener, KeyPressReleaseListener, SelectionEnded { 074 075 private static final String NORMAL = /* ICON(cursor/)*/ "normal"; 076 077 /** 078 * Select action mode. 079 * @since 7543 080 */ 081 public enum Mode { 082 /** "MOVE" means either dragging or select if no mouse movement occurs (i.e. just clicking) */ 083 MOVE, 084 /** "ROTATE" allows to apply a rotation transformation on the selected object (see {@link RotateCommand}) */ 085 ROTATE, 086 /** "SCALE" allows to apply a scaling transformation on the selected object (see {@link ScaleCommand}) */ 087 SCALE, 088 /** "SELECT" means the selection rectangle */ 089 SELECT 090 } 091 092 // contains all possible cases the cursor can be in the SelectAction 093 enum SelectActionCursor { 094 095 rect(NORMAL, /* ICON(cursor/modifier/)*/ "selection"), 096 rect_add(NORMAL, /* ICON(cursor/modifier/)*/ "select_add"), 097 rect_rm(NORMAL, /* ICON(cursor/modifier/)*/ "select_remove"), 098 way(NORMAL, /* ICON(cursor/modifier/)*/ "select_way"), 099 way_add(NORMAL, /* ICON(cursor/modifier/)*/ "select_way_add"), 100 way_rm(NORMAL, /* ICON(cursor/modifier/)*/ "select_way_remove"), 101 node(NORMAL, /* ICON(cursor/modifier/)*/ "select_node"), 102 node_add(NORMAL, /* ICON(cursor/modifier/)*/ "select_node_add"), 103 node_rm(NORMAL, /* ICON(cursor/modifier/)*/ "select_node_remove"), 104 virtual_node(NORMAL, /* ICON(cursor/modifier/)*/ "addnode"), 105 scale(/* ICON(cursor/)*/ "scale", null), 106 rotate(/* ICON(cursor/)*/ "rotate", null), 107 merge(/* ICON(cursor/)*/ "crosshair", null), 108 lasso(NORMAL, /* ICON(cursor/modifier/)*/ "rope"), 109 merge_to_node(/* ICON(cursor/)*/ "crosshair", /* ICON(cursor/modifier/)*/"joinnode"), 110 move(Cursor.MOVE_CURSOR); 111 112 private final Cursor c; 113 SelectActionCursor(String main, String sub) { 114 c = ImageProvider.getCursor(main, sub); 115 } 116 117 SelectActionCursor(int systemCursor) { 118 c = Cursor.getPredefinedCursor(systemCursor); 119 } 120 121 /** 122 * Returns the action cursor. 123 * @return the cursor 124 */ 125 public Cursor cursor() { 126 return c; 127 } 128 } 129 130 private boolean lassoMode; 131 private boolean repeatedKeySwitchLassoOption; 132 133 // Cache previous mouse event (needed when only the modifier keys are 134 // pressed but the mouse isn't moved) 135 private MouseEvent oldEvent; 136 137 private Mode mode; 138 private final transient SelectionManager selectionManager; 139 private boolean cancelDrawMode; 140 private boolean drawTargetHighlight; 141 private boolean didMouseDrag; 142 /** 143 * The component this SelectAction is associated with. 144 */ 145 private final MapView mv; 146 /** 147 * The old cursor before the user pressed the mouse button. 148 */ 149 private Point startingDraggingPos; 150 /** 151 * point where user pressed the mouse to start movement 152 */ 153 private EastNorth startEN; 154 /** 155 * The last known position of the mouse. 156 */ 157 private Point lastMousePos; 158 /** 159 * The time of the user mouse down event. 160 */ 161 private long mouseDownTime; 162 /** 163 * The pressed button of the user mouse down event. 164 */ 165 private int mouseDownButton; 166 /** 167 * The time of the user mouse down event. 168 */ 169 private long mouseReleaseTime; 170 /** 171 * The time which needs to pass between click and release before something 172 * counts as a move, in milliseconds 173 */ 174 private int initialMoveDelay; 175 /** 176 * The screen distance which needs to be travelled before something 177 * counts as a move, in pixels 178 */ 179 private int initialMoveThreshold; 180 private boolean initialMoveThresholdExceeded; 181 182 /** 183 * elements that have been highlighted in the previous iteration. Used 184 * to remove the highlight from them again as otherwise the whole data 185 * set would have to be checked. 186 */ 187 private transient Optional<OsmPrimitive> currentHighlight = Optional.empty(); 188 189 /** 190 * Create a new SelectAction 191 * @param mapFrame The MapFrame this action belongs to. 192 */ 193 public SelectAction(MapFrame mapFrame) { 194 super(tr("Select"), "move/move", tr("Select, move, scale and rotate objects"), 195 Shortcut.registerShortcut("mapmode:select", tr("Mode: {0}", tr("Select")), KeyEvent.VK_S, Shortcut.DIRECT), 196 ImageProvider.getCursor("normal", "selection")); 197 mv = mapFrame.mapView; 198 setHelpId(ht("/Action/Select")); 199 selectionManager = new SelectionManager(this, false, mv); 200 } 201 202 @Override 203 public void enterMode() { 204 super.enterMode(); 205 mv.addMouseListener(this); 206 mv.addMouseMotionListener(this); 207 mv.setVirtualNodesEnabled(Config.getPref().getInt("mappaint.node.virtual-size", 8) != 0); 208 drawTargetHighlight = Config.getPref().getBoolean("draw.target-highlight", true); 209 initialMoveDelay = Config.getPref().getInt("edit.initial-move-delay", 200); 210 initialMoveThreshold = Config.getPref().getInt("edit.initial-move-threshold", 5); 211 repeatedKeySwitchLassoOption = Config.getPref().getBoolean("mappaint.select.toggle-lasso-on-repeated-S", true); 212 cycleManager.init(); 213 virtualManager.init(); 214 // This is required to update the cursors when ctrl/shift/alt is pressed 215 MapFrame map = MainApplication.getMap(); 216 map.keyDetector.addModifierExListener(this); 217 map.keyDetector.addKeyListener(this); 218 } 219 220 @Override 221 public void exitMode() { 222 super.exitMode(); 223 cycleManager.cycleStart = null; 224 cycleManager.cycleList = asColl(null); 225 selectionManager.unregister(mv); 226 mv.removeMouseListener(this); 227 mv.removeMouseMotionListener(this); 228 mv.setVirtualNodesEnabled(false); 229 MapFrame map = MainApplication.getMap(); 230 map.keyDetector.removeModifierExListener(this); 231 map.keyDetector.removeKeyListener(this); 232 removeHighlighting(); 233 } 234 235 @Override 236 public void modifiersExChanged(int modifiers) { 237 if (!MainApplication.isDisplayingMapView() || oldEvent == null) return; 238 if (giveUserFeedback(oldEvent, modifiers)) { 239 mv.repaint(); 240 } 241 } 242 243 /** 244 * handles adding highlights and updating the cursor for the given mouse event. 245 * Please note that the highlighting for merging while moving is handled via mouseDragged. 246 * @param e {@code MouseEvent} which should be used as base for the feedback 247 * @return {@code true} if repaint is required 248 */ 249 private boolean giveUserFeedback(MouseEvent e) { 250 return giveUserFeedback(e, e.getModifiersEx()); 251 } 252 253 /** 254 * handles adding highlights and updating the cursor for the given mouse event. 255 * Please note that the highlighting for merging while moving is handled via mouseDragged. 256 * @param e {@code MouseEvent} which should be used as base for the feedback 257 * @param modifiers define custom keyboard extended modifiers if the ones from MouseEvent are outdated or similar 258 * @return {@code true} if repaint is required 259 */ 260 private boolean giveUserFeedback(MouseEvent e, int modifiers) { 261 Optional<OsmPrimitive> c = Optional.ofNullable( 262 mv.getNearestNodeOrWay(e.getPoint(), mv.isSelectablePredicate, true)); 263 264 updateKeyModifiersEx(modifiers); 265 determineMapMode(c.isPresent()); 266 267 Optional<OsmPrimitive> newHighlight = Optional.empty(); 268 269 virtualManager.clear(); 270 if (mode == Mode.MOVE && !dragInProgress() && virtualManager.activateVirtualNodeNearPoint(e.getPoint())) { 271 DataSet ds = getLayerManager().getActiveDataSet(); 272 if (ds != null && drawTargetHighlight) { 273 ds.setHighlightedVirtualNodes(virtualManager.virtualWays); 274 } 275 mv.setNewCursor(SelectActionCursor.virtual_node.cursor(), this); 276 // don't highlight anything else if a virtual node will be 277 return repaintIfRequired(newHighlight); 278 } 279 280 mv.setNewCursor(getCursor(c.orElse(null)), this); 281 282 // return early if there can't be any highlights 283 if (!drawTargetHighlight || (mode != Mode.MOVE && mode != Mode.SELECT) || !c.isPresent()) 284 return repaintIfRequired(newHighlight); 285 286 // CTRL toggles selection, but if while dragging CTRL means merge 287 final boolean isToggleMode = ctrl && !dragInProgress(); 288 if (c.isPresent() && (isToggleMode || !c.get().isSelected())) { 289 // only highlight primitives that will change the selection 290 // when clicked. I.e. don't highlight selected elements unless 291 // we are in toggle mode. 292 newHighlight = c; 293 } 294 return repaintIfRequired(newHighlight); 295 } 296 297 /** 298 * works out which cursor should be displayed for most of SelectAction's 299 * features. The only exception is the "move" cursor when actually dragging 300 * primitives. 301 * @param nearbyStuff primitives near the cursor 302 * @return the cursor that should be displayed 303 */ 304 private Cursor getCursor(OsmPrimitive nearbyStuff) { 305 String c = "rect"; 306 switch(mode) { 307 case MOVE: 308 if (virtualManager.hasVirtualNode()) { 309 c = "virtual_node"; 310 break; 311 } 312 final OsmPrimitive osm = nearbyStuff; 313 314 if (dragInProgress()) { 315 // only consider merge if ctrl is pressed and there are nodes in 316 // the selection that could be merged 317 if (!ctrl || getLayerManager().getEditDataSet().getSelectedNodes().isEmpty()) { 318 c = "move"; 319 break; 320 } 321 // only show merge to node cursor if nearby node and that node is currently 322 // not being dragged 323 final boolean hasTarget = osm instanceof Node && !osm.isSelected(); 324 c = hasTarget ? "merge_to_node" : "merge"; 325 break; 326 } 327 328 c = (osm instanceof Node) ? "node" : c; 329 c = (osm instanceof Way) ? "way" : c; 330 if (shift) { 331 c += "_add"; 332 } else if (ctrl) { 333 c += osm == null || osm.isSelected() ? "_rm" : "_add"; 334 } 335 break; 336 case ROTATE: 337 c = "rotate"; 338 break; 339 case SCALE: 340 c = "scale"; 341 break; 342 case SELECT: 343 if (lassoMode) { 344 c = "lasso"; 345 } else { 346 c = "rect" + (shift ? "_add" : (ctrl && !PlatformManager.isPlatformOsx() ? "_rm" : "")); 347 } 348 break; 349 } 350 return SelectActionCursor.valueOf(c).cursor(); 351 } 352 353 /** 354 * Removes all existing highlights. 355 * @return true if a repaint is required 356 */ 357 private boolean removeHighlighting() { 358 boolean needsRepaint = false; 359 OsmData<?, ?, ?, ?> ds = getLayerManager().getActiveData(); 360 if (ds != null && !ds.getHighlightedVirtualNodes().isEmpty()) { 361 needsRepaint = true; 362 ds.clearHighlightedVirtualNodes(); 363 } 364 if (!currentHighlight.isPresent()) { 365 return needsRepaint; 366 } else { 367 currentHighlight.get().setHighlighted(false); 368 } 369 currentHighlight = Optional.empty(); 370 return true; 371 } 372 373 private boolean repaintIfRequired(Optional<OsmPrimitive> newHighlight) { 374 if (!drawTargetHighlight || currentHighlight.equals(newHighlight)) 375 return false; 376 currentHighlight.ifPresent(osm -> osm.setHighlighted(false)); 377 newHighlight.ifPresent(osm -> osm.setHighlighted(true)); 378 currentHighlight = newHighlight; 379 return true; 380 } 381 382 /** 383 * Look, whether any object is selected. If not, select the nearest node. 384 * If there are no nodes in the dataset, do nothing. 385 * 386 * If the user did not press the left mouse button, do nothing. 387 * 388 * Also remember the starting position of the movement and change the mouse 389 * cursor to movement. 390 */ 391 @Override 392 public void mousePressed(MouseEvent e) { 393 mouseDownButton = e.getButton(); 394 // return early 395 if (!mv.isActiveLayerVisible() || !(Boolean) this.getValue("active") || mouseDownButton != MouseEvent.BUTTON1) 396 return; 397 398 // left-button mouse click only is processed here 399 400 // request focus in order to enable the expected keyboard shortcuts 401 mv.requestFocus(); 402 403 // update which modifiers are pressed (shift, alt, ctrl) 404 updateKeyModifiers(e); 405 406 // We don't want to change to draw tool if the user tries to (de)select 407 // stuff but accidentally clicks in an empty area when selection is empty 408 cancelDrawMode = shift || ctrl; 409 didMouseDrag = false; 410 initialMoveThresholdExceeded = false; 411 mouseDownTime = System.currentTimeMillis(); 412 lastMousePos = e.getPoint(); 413 startEN = mv.getEastNorth(lastMousePos.x, lastMousePos.y); 414 415 // primitives under cursor are stored in c collection 416 417 OsmPrimitive nearestPrimitive = mv.getNearestNodeOrWay(e.getPoint(), mv.isSelectablePredicate, true); 418 419 determineMapMode(nearestPrimitive != null); 420 421 switch(mode) { 422 case ROTATE: 423 case SCALE: 424 // if nothing was selected, select primitive under cursor for scaling or rotating 425 DataSet ds = getLayerManager().getEditDataSet(); 426 if (ds.selectionEmpty()) { 427 ds.setSelected(asColl(nearestPrimitive)); 428 } 429 430 // Mode.select redraws when selectPrims is called 431 // Mode.move redraws when mouseDragged is called 432 // Mode.rotate redraws here 433 // Mode.scale redraws here 434 break; 435 case MOVE: 436 // also include case when some primitive is under cursor and no shift+ctrl / alt+ctrl is pressed 437 // so this is not movement, but selection on primitive under cursor 438 if (!cancelDrawMode && nearestPrimitive instanceof Way) { 439 virtualManager.activateVirtualNodeNearPoint(e.getPoint()); 440 } 441 OsmPrimitive toSelect = cycleManager.cycleSetup(nearestPrimitive, e.getPoint()); 442 selectPrims(asColl(toSelect), false, false); 443 useLastMoveCommandIfPossible(); 444 // Schedule a timer to update status line "initialMoveDelay+1" ms in the future 445 GuiHelper.scheduleTimer(initialMoveDelay+1, evt -> updateStatusLine(), false); 446 break; 447 case SELECT: 448 default: 449 if (!(ctrl && PlatformManager.isPlatformOsx())) { 450 // start working with rectangle or lasso 451 selectionManager.register(mv, lassoMode); 452 selectionManager.mousePressed(e); 453 break; 454 } 455 } 456 if (giveUserFeedback(e)) { 457 mv.repaint(); 458 } 459 updateStatusLine(); 460 } 461 462 @Override 463 public void mouseMoved(MouseEvent e) { 464 // Mac OSX simulates with ctrl + mouse 1 the second mouse button hence no dragging events get fired. 465 if (PlatformManager.isPlatformOsx() && (mode == Mode.ROTATE || mode == Mode.SCALE)) { 466 mouseDragged(e); 467 return; 468 } 469 oldEvent = e; 470 if (giveUserFeedback(e)) { 471 mv.repaint(); 472 } 473 } 474 475 /** 476 * If the left mouse button is pressed, move all currently selected 477 * objects (if one of them is under the mouse) or the current one under the 478 * mouse (which will become selected). 479 */ 480 @Override 481 public void mouseDragged(MouseEvent e) { 482 if (!mv.isActiveLayerVisible()) 483 return; 484 485 // Swing sends random mouseDragged events when closing dialogs by double-clicking their top-left icon on Windows 486 // Ignore such false events to prevent issues like #7078 487 if (mouseDownButton == MouseEvent.BUTTON1 && mouseReleaseTime > mouseDownTime) 488 return; 489 490 cancelDrawMode = true; 491 if (mode == Mode.SELECT) { 492 // Unregisters selectionManager if ctrl has been pressed after mouse click on Mac OS X in order to move the map 493 if (ctrl && PlatformManager.isPlatformOsx()) { 494 selectionManager.unregister(mv); 495 // Make sure correct cursor is displayed 496 mv.setNewCursor(Cursor.MOVE_CURSOR, this); 497 } 498 return; 499 } 500 501 // do not count anything as a move if it lasts less than 100 milliseconds. 502 if ((mode == Mode.MOVE) && (System.currentTimeMillis() - mouseDownTime < initialMoveDelay)) 503 return; 504 505 if (mode != Mode.ROTATE && mode != Mode.SCALE && (e.getModifiersEx() & MouseEvent.BUTTON1_DOWN_MASK) == 0) { 506 // button is pressed in rotate mode 507 return; 508 } 509 510 if (mode == Mode.MOVE) { 511 // If ctrl is pressed we are in merge mode. Look for a nearby node, 512 // highlight it and adjust the cursor accordingly. 513 final boolean canMerge = ctrl && !getLayerManager().getEditDataSet().getSelectedNodes().isEmpty(); 514 final OsmPrimitive p = canMerge ? findNodeToMergeTo(e.getPoint()) : null; 515 boolean needsRepaint = removeHighlighting(); 516 if (p != null) { 517 p.setHighlighted(true); 518 currentHighlight = Optional.of(p); 519 needsRepaint = true; 520 } 521 mv.setNewCursor(getCursor(p), this); 522 // also update the stored mouse event, so we can display the correct cursor 523 // when dragging a node onto another one and then press CTRL to merge 524 oldEvent = e; 525 if (needsRepaint) { 526 mv.repaint(); 527 } 528 } 529 530 if (startingDraggingPos == null) { 531 startingDraggingPos = new Point(e.getX(), e.getY()); 532 } 533 534 if (lastMousePos == null) { 535 lastMousePos = e.getPoint(); 536 return; 537 } 538 539 if (!initialMoveThresholdExceeded) { 540 int dp = (int) lastMousePos.distance(e.getX(), e.getY()); 541 if (dp < initialMoveThreshold) 542 return; // ignore small drags 543 initialMoveThresholdExceeded = true; //no more ingnoring uintil nex mouse press 544 } 545 if (e.getPoint().equals(lastMousePos)) 546 return; 547 548 EastNorth currentEN = mv.getEastNorth(e.getX(), e.getY()); 549 550 if (virtualManager.hasVirtualWaysToBeConstructed()) { 551 virtualManager.createMiddleNodeFromVirtual(currentEN); 552 } else { 553 if (!updateCommandWhileDragging(currentEN)) return; 554 } 555 556 mv.repaint(); 557 if (mode != Mode.SCALE) { 558 lastMousePos = e.getPoint(); 559 } 560 561 didMouseDrag = true; 562 } 563 564 @Override 565 public void mouseExited(MouseEvent e) { 566 if (removeHighlighting()) { 567 mv.repaint(); 568 } 569 } 570 571 @Override 572 public void mouseReleased(MouseEvent e) { 573 if (!mv.isActiveLayerVisible()) 574 return; 575 576 startingDraggingPos = null; 577 mouseReleaseTime = System.currentTimeMillis(); 578 MapFrame map = MainApplication.getMap(); 579 580 if (mode == Mode.SELECT) { 581 if (e.getButton() != MouseEvent.BUTTON1) { 582 return; 583 } 584 selectionManager.endSelecting(e); 585 selectionManager.unregister(mv); 586 587 // Select Draw Tool if no selection has been made 588 if (!cancelDrawMode && getLayerManager().getActiveDataSet().selectionEmpty()) { 589 map.selectDrawTool(true); 590 updateStatusLine(); 591 return; 592 } 593 } 594 595 if (mode == Mode.MOVE && e.getButton() == MouseEvent.BUTTON1) { 596 if (!didMouseDrag) { 597 // only built in move mode 598 virtualManager.clear(); 599 // do nothing if the click was to short too be recognized as a drag, 600 // but the release position is farther than 10px away from the press position 601 if (lastMousePos == null || lastMousePos.distanceSq(e.getPoint()) < 100) { 602 updateKeyModifiers(e); 603 selectPrims(cycleManager.cyclePrims(), true, false); 604 605 // If the user double-clicked a node, change to draw mode 606 Collection<OsmPrimitive> c = getLayerManager().getEditDataSet().getSelected(); 607 if (e.getClickCount() >= 2 && c.size() == 1 && c.iterator().next() instanceof Node) { 608 // We need to do it like this as otherwise drawAction will see a double 609 // click and switch back to SelectMode 610 MainApplication.worker.execute(() -> map.selectDrawTool(true)); 611 return; 612 } 613 } 614 } else { 615 confirmOrUndoMovement(e); 616 } 617 } 618 619 mode = null; 620 621 // simply remove any highlights if the middle click popup is active because 622 // the highlights don't depend on the cursor position there. If something was 623 // selected beforehand this would put us into move mode as well, which breaks 624 // the cycling through primitives on top of each other (see #6739). 625 if (e.getButton() == MouseEvent.BUTTON2) { 626 removeHighlighting(); 627 } else { 628 giveUserFeedback(e); 629 } 630 updateStatusLine(); 631 } 632 633 @Override 634 public void selectionEnded(Rectangle r, MouseEvent e) { 635 updateKeyModifiers(e); 636 selectPrims(selectionManager.getSelectedObjects(alt), true, true); 637 } 638 639 @Override 640 public void doKeyPressed(KeyEvent e) { 641 if (!repeatedKeySwitchLassoOption || !MainApplication.isDisplayingMapView() || !getShortcut().isEvent(e)) 642 return; 643 if (Logging.isDebugEnabled()) { 644 Logging.debug("{0} consuming event {1}", getClass().getName(), e); 645 } 646 e.consume(); 647 MapFrame map = MainApplication.getMap(); 648 if (!lassoMode) { 649 map.selectMapMode(map.mapModeSelectLasso); 650 } else { 651 map.selectMapMode(map.mapModeSelect); 652 } 653 } 654 655 @Override 656 public void doKeyReleased(KeyEvent e) { 657 // Do nothing 658 } 659 660 /** 661 * sets the mapmode according to key modifiers and if there are any 662 * selectables nearby. Everything has to be pre-determined for this 663 * function; its main purpose is to centralize what the modifiers do. 664 * @param hasSelectionNearby {@code true} if some primitves are selectable nearby 665 */ 666 private void determineMapMode(boolean hasSelectionNearby) { 667 if (getLayerManager().getEditDataSet() != null) { 668 if (shift && ctrl) { 669 mode = Mode.ROTATE; 670 } else if (alt && ctrl) { 671 mode = Mode.SCALE; 672 } else if (hasSelectionNearby || dragInProgress()) { 673 mode = Mode.MOVE; 674 } else { 675 mode = Mode.SELECT; 676 } 677 } else { 678 mode = Mode.SELECT; 679 } 680 } 681 682 /** 683 * Determines whenever elements have been grabbed and moved (i.e. the initial 684 * thresholds have been exceeded) and is still in progress (i.e. mouse button still pressed) 685 * @return true if a drag is in progress 686 */ 687 private boolean dragInProgress() { 688 return didMouseDrag && startingDraggingPos != null; 689 } 690 691 /** 692 * Create or update data modification command while dragging mouse - implementation of 693 * continuous moving, scaling and rotation 694 * @param currentEN - mouse position 695 * @return status of action (<code>true</code> when action was performed) 696 */ 697 private boolean updateCommandWhileDragging(EastNorth currentEN) { 698 // Currently we support only transformations which do not affect relations. 699 // So don't add them in the first place to make handling easier 700 DataSet ds = getLayerManager().getEditDataSet(); 701 Collection<OsmPrimitive> selection = ds.getSelectedNodesAndWays(); 702 if (selection.isEmpty()) { // if nothing was selected to drag, just select nearest node/way to the cursor 703 OsmPrimitive nearestPrimitive = mv.getNearestNodeOrWay(mv.getPoint(startEN), mv.isSelectablePredicate, true); 704 ds.setSelected(nearestPrimitive); 705 } 706 707 Collection<Node> affectedNodes = AllNodesVisitor.getAllNodes(selection); 708 // for these transformations, having only one node makes no sense - quit silently 709 if (affectedNodes.size() < 2 && (mode == Mode.ROTATE || mode == Mode.SCALE)) { 710 return false; 711 } 712 Command c = getLastCommandInDataset(ds); 713 if (mode == Mode.MOVE) { 714 if (startEN == null) return false; // fix #8128 715 ds.beginUpdate(); 716 try { 717 if (c instanceof MoveCommand && affectedNodes.equals(((MoveCommand) c).getParticipatingPrimitives())) { 718 ((MoveCommand) c).saveCheckpoint(); 719 ((MoveCommand) c).applyVectorTo(currentEN); 720 } else if (!selection.isEmpty()) { 721 c = new MoveCommand(selection, startEN, currentEN); 722 UndoRedoHandler.getInstance().add(c); 723 } 724 for (Node n : affectedNodes) { 725 LatLon ll = n.getCoor(); 726 if (ll != null && ll.isOutSideWorld()) { 727 // Revert move 728 if (c instanceof MoveCommand) { 729 ((MoveCommand) c).resetToCheckpoint(); 730 } 731 // TODO: We might use a simple notification in the lower left corner. 732 JOptionPane.showMessageDialog( 733 MainApplication.getMainFrame(), 734 tr("Cannot move objects outside of the world."), 735 tr("Warning"), 736 JOptionPane.WARNING_MESSAGE); 737 mv.setNewCursor(cursor, this); 738 return false; 739 } 740 } 741 } finally { 742 ds.endUpdate(); 743 } 744 } else { 745 startEN = currentEN; // drag can continue after scaling/rotation 746 747 if (mode != Mode.ROTATE && mode != Mode.SCALE) { 748 return false; 749 } 750 751 ds.beginUpdate(); 752 try { 753 if (mode == Mode.ROTATE) { 754 if (c instanceof RotateCommand && affectedNodes.equals(((RotateCommand) c).getTransformedNodes())) { 755 ((RotateCommand) c).handleEvent(currentEN); 756 } else { 757 UndoRedoHandler.getInstance().add(new RotateCommand(selection, currentEN)); 758 } 759 } else if (mode == Mode.SCALE) { 760 if (c instanceof ScaleCommand && affectedNodes.equals(((ScaleCommand) c).getTransformedNodes())) { 761 ((ScaleCommand) c).handleEvent(currentEN); 762 } else { 763 UndoRedoHandler.getInstance().add(new ScaleCommand(selection, currentEN)); 764 } 765 } 766 767 Collection<Way> ways = ds.getSelectedWays(); 768 if (doesImpactStatusLine(affectedNodes, ways)) { 769 MainApplication.getMap().statusLine.setDist(ways); 770 } 771 } finally { 772 ds.endUpdate(); 773 } 774 } 775 return true; 776 } 777 778 private static boolean doesImpactStatusLine(Collection<Node> affectedNodes, Collection<Way> selectedWays) { 779 for (Way w : selectedWays) { 780 for (Node n : w.getNodes()) { 781 if (affectedNodes.contains(n)) { 782 return true; 783 } 784 } 785 } 786 return false; 787 } 788 789 /** 790 * Adapt last move command (if it is suitable) to work with next drag, started at point startEN 791 */ 792 private void useLastMoveCommandIfPossible() { 793 DataSet dataSet = getLayerManager().getEditDataSet(); 794 if (dataSet == null) { 795 // It may happen that there is no edit layer. 796 return; 797 } 798 Command c = getLastCommandInDataset(dataSet); 799 Collection<Node> affectedNodes = AllNodesVisitor.getAllNodes(dataSet.getSelected()); 800 if (c instanceof MoveCommand && affectedNodes.equals(((MoveCommand) c).getParticipatingPrimitives())) { 801 // old command was created with different base point of movement, we need to recalculate it 802 ((MoveCommand) c).changeStartPoint(startEN); 803 } 804 } 805 806 /** 807 * Obtain command in undoRedo stack to "continue" when dragging 808 * @param ds The data set the command needs to be in. 809 * @return last command 810 */ 811 private static Command getLastCommandInDataset(DataSet ds) { 812 Command lastCommand = UndoRedoHandler.getInstance().getLastCommand(); 813 if (lastCommand instanceof SequenceCommand) { 814 lastCommand = ((SequenceCommand) lastCommand).getLastCommand(); 815 } 816 if (lastCommand != null && ds.equals(lastCommand.getAffectedDataSet())) { 817 return lastCommand; 818 } else { 819 return null; 820 } 821 } 822 823 /** 824 * Present warning in the following cases and undo unwanted movements: <ul> 825 * <li>large and possibly unwanted movements</li> 826 * <li>movement of node with attached ways that are hidden by filters</li> 827 * </ul> 828 * 829 * @param e the mouse event causing the action (mouse released) 830 */ 831 private void confirmOrUndoMovement(MouseEvent e) { 832 if (movesHiddenWay()) { 833 final ExtendedDialog ed = new ConfirmMoveDialog(); 834 ed.setContent(tr("Are you sure that you want to move elements with attached ways that are hidden by filters?")); 835 ed.toggleEnable("movedHiddenElements"); 836 ed.showDialog(); 837 if (ed.getValue() != 1) { 838 UndoRedoHandler.getInstance().undo(); 839 } 840 } 841 Set<Node> nodes = new HashSet<>(); 842 int max = Config.getPref().getInt("warn.move.maxelements", 20); 843 for (OsmPrimitive osm : getLayerManager().getEditDataSet().getSelected()) { 844 if (osm instanceof Way) { 845 nodes.addAll(((Way) osm).getNodes()); 846 } else if (osm instanceof Node) { 847 nodes.add((Node) osm); 848 } 849 if (nodes.size() > max) { 850 break; 851 } 852 } 853 if (nodes.size() > max) { 854 final ExtendedDialog ed = new ConfirmMoveDialog(); 855 ed.setContent( 856 /* for correct i18n of plural forms - see #9110 */ 857 trn("You moved more than {0} element. " + "Moving a large number of elements is often an error.\n" + "Really move them?", 858 "You moved more than {0} elements. " + "Moving a large number of elements is often an error.\n" + "Really move them?", 859 max, max)); 860 ed.toggleEnable("movedManyElements"); 861 ed.showDialog(); 862 863 if (ed.getValue() != 1) { 864 UndoRedoHandler.getInstance().undo(); 865 } 866 } else { 867 // if small number of elements were moved, 868 updateKeyModifiers(e); 869 if (ctrl) mergePrims(e.getPoint()); 870 } 871 } 872 873 static class ConfirmMoveDialog extends ExtendedDialog { 874 ConfirmMoveDialog() { 875 super(MainApplication.getMainFrame(), 876 tr("Move elements"), 877 tr("Move them"), tr("Undo move")); 878 setButtonIcons("reorder", "cancel"); 879 setCancelButton(2); 880 } 881 } 882 883 private boolean movesHiddenWay() { 884 DataSet ds = getLayerManager().getEditDataSet(); 885 final Collection<Node> elementsToTest = new HashSet<>(ds.getSelectedNodes()); 886 for (Way osm : ds.getSelectedWays()) { 887 elementsToTest.addAll(osm.getNodes()); 888 } 889 return elementsToTest.stream() 890 .flatMap(n -> n.referrers(Way.class)) 891 .anyMatch(Way::isDisabledAndHidden); 892 } 893 894 /** 895 * Merges the selected nodes to the one closest to the given mouse position if the control 896 * key is pressed. If there is no such node, no action will be done and no error will be 897 * reported. If there is, it will execute the merge and add it to the undo buffer. 898 * @param p mouse position 899 */ 900 private void mergePrims(Point p) { 901 DataSet ds = getLayerManager().getEditDataSet(); 902 Collection<Node> selNodes = ds.getSelectedNodes(); 903 if (selNodes.isEmpty()) 904 return; 905 906 Node target = findNodeToMergeTo(p); 907 if (target == null) 908 return; 909 910 if (selNodes.size() == 1) { 911 // Move all selected primitive to preserve shape #10748 912 Collection<OsmPrimitive> selection = ds.getSelectedNodesAndWays(); 913 Collection<Node> affectedNodes = AllNodesVisitor.getAllNodes(selection); 914 Command c = getLastCommandInDataset(ds); 915 ds.beginUpdate(); 916 try { 917 if (c instanceof MoveCommand && affectedNodes.equals(((MoveCommand) c).getParticipatingPrimitives())) { 918 Node selectedNode = selNodes.iterator().next(); 919 EastNorth selectedEN = selectedNode.getEastNorth(); 920 EastNorth targetEN = target.getEastNorth(); 921 ((MoveCommand) c).moveAgain(targetEN.getX() - selectedEN.getX(), 922 targetEN.getY() - selectedEN.getY()); 923 } 924 } finally { 925 ds.endUpdate(); 926 } 927 } 928 929 Collection<Node> nodesToMerge = new LinkedList<>(selNodes); 930 nodesToMerge.add(target); 931 mergeNodes(MainApplication.getLayerManager().getEditLayer(), nodesToMerge, target); 932 } 933 934 /** 935 * Merge nodes using {@code MergeNodesAction}. 936 * Can be overridden for testing purpose. 937 * @param layer layer the reference data layer. Must not be null 938 * @param nodes the collection of nodes. Ignored if null 939 * @param targetLocationNode this node's location will be used for the target node 940 */ 941 public void mergeNodes(OsmDataLayer layer, Collection<Node> nodes, 942 Node targetLocationNode) { 943 MergeNodesAction.doMergeNodes(layer, nodes, targetLocationNode); 944 } 945 946 /** 947 * Tries to find a node to merge to when in move-merge mode for the current mouse 948 * position. Either returns the node or null, if no suitable one is nearby. 949 * @param p mouse position 950 * @return node to merge to, or null 951 */ 952 private Node findNodeToMergeTo(Point p) { 953 Collection<Node> target = mv.getNearestNodes(p, 954 getLayerManager().getEditDataSet().getSelectedNodes(), 955 mv.isSelectablePredicate); 956 return target.isEmpty() ? null : target.iterator().next(); 957 } 958 959 private void selectPrims(Collection<OsmPrimitive> prims, boolean released, boolean area) { 960 DataSet ds = getLayerManager().getActiveDataSet(); 961 962 // not allowed together: do not change dataset selection, return early 963 // Virtual Ways: if non-empty the cursor is above a virtual node. So don't highlight 964 // anything if about to drag the virtual node (i.e. !released) but continue if the 965 // cursor is only released above a virtual node by accident (i.e. released). See #7018 966 if (ds == null || (shift && ctrl) || (ctrl && !released) || (virtualManager.hasVirtualWaysToBeConstructed() && !released)) 967 return; 968 969 if (!released) { 970 // Don't replace the selection if the user clicked on a 971 // selected object (it breaks moving of selected groups). 972 // Do it later, on mouse release. 973 shift |= ds.getSelected().containsAll(prims); 974 } 975 976 if (ctrl) { 977 // Ctrl on an item toggles its selection status, 978 // but Ctrl on an *area* just clears those items 979 // out of the selection. 980 if (area) { 981 ds.clearSelection(prims); 982 } else { 983 ds.toggleSelected(prims); 984 } 985 } else if (shift) { 986 // add prims to an existing selection 987 ds.addSelected(prims); 988 } else { 989 // clear selection, then select the prims clicked 990 ds.setSelected(prims); 991 } 992 } 993 994 /** 995 * Returns the current select mode. 996 * @return the select mode 997 * @since 7543 998 */ 999 public final Mode getMode() { 1000 return mode; 1001 } 1002 1003 @Override 1004 public String getModeHelpText() { 1005 if (mouseDownButton == MouseEvent.BUTTON1 && mouseReleaseTime < mouseDownTime) { 1006 if (mode == Mode.SELECT) 1007 return tr("Release the mouse button to select the objects in the rectangle."); 1008 else if (mode == Mode.MOVE && (System.currentTimeMillis() - mouseDownTime >= initialMoveDelay)) { 1009 final DataSet ds = getLayerManager().getEditDataSet(); 1010 final boolean canMerge = ds != null && !ds.getSelectedNodes().isEmpty(); 1011 final String mergeHelp = canMerge ? (' ' + tr("Ctrl to merge with nearest node.")) : ""; 1012 return tr("Release the mouse button to stop moving.") + mergeHelp; 1013 } else if (mode == Mode.ROTATE) 1014 return tr("Release the mouse button to stop rotating."); 1015 else if (mode == Mode.SCALE) 1016 return tr("Release the mouse button to stop scaling."); 1017 } 1018 return tr("Move objects by dragging; Shift to add to selection (Ctrl to toggle); Shift-Ctrl to rotate selected; " + 1019 "Alt-Ctrl to scale selected; or change selection"); 1020 } 1021 1022 @Override 1023 public boolean layerIsSupported(Layer l) { 1024 return l instanceof OsmDataLayer; 1025 } 1026 1027 /** 1028 * Enable or diable the lasso mode 1029 * @param lassoMode true to enable the lasso mode, false otherwise 1030 */ 1031 public void setLassoMode(boolean lassoMode) { 1032 this.selectionManager.setLassoMode(lassoMode); 1033 this.lassoMode = lassoMode; 1034 } 1035 1036 private final transient CycleManager cycleManager = new CycleManager(); 1037 private final transient VirtualManager virtualManager = new VirtualManager(); 1038 1039 private class CycleManager { 1040 1041 private Collection<OsmPrimitive> cycleList = Collections.emptyList(); 1042 private boolean cyclePrims; 1043 private OsmPrimitive cycleStart; 1044 private boolean waitForMouseUpParameter; 1045 private boolean multipleMatchesParameter; 1046 /** 1047 * read preferences 1048 */ 1049 private void init() { 1050 waitForMouseUpParameter = Config.getPref().getBoolean("mappaint.select.waits-for-mouse-up", false); 1051 multipleMatchesParameter = Config.getPref().getBoolean("selectaction.cycles.multiple.matches", false); 1052 } 1053 1054 /** 1055 * Determine primitive to be selected and build cycleList 1056 * @param nearest primitive found by simple method 1057 * @param p point where user clicked 1058 * @return OsmPrimitive to be selected 1059 */ 1060 private OsmPrimitive cycleSetup(OsmPrimitive nearest, Point p) { 1061 OsmPrimitive osm = null; 1062 1063 if (nearest != null) { 1064 osm = nearest; 1065 1066 if (!(alt || multipleMatchesParameter)) { 1067 // no real cycling, just one element in cycle list 1068 cycleList = asColl(osm); 1069 1070 if (waitForMouseUpParameter) { 1071 // prefer a selected nearest node or way, if possible 1072 osm = mv.getNearestNodeOrWay(p, mv.isSelectablePredicate, true); 1073 } 1074 } else { 1075 // Alt + left mouse button pressed: we need to build cycle list 1076 cycleList = mv.getAllNearest(p, mv.isSelectablePredicate); 1077 1078 if (cycleList.size() > 1) { 1079 cyclePrims = false; 1080 1081 // find first already selected element in cycle list 1082 OsmPrimitive old = osm; 1083 for (OsmPrimitive o : cycleList) { 1084 if (o.isSelected()) { 1085 cyclePrims = true; 1086 osm = o; 1087 break; 1088 } 1089 } 1090 1091 // special case: for cycle groups of 2, we can toggle to the 1092 // true nearest primitive on mousePressed right away 1093 if (cycleList.size() == 2 && !waitForMouseUpParameter) { 1094 if (!(osm.equals(old) || osm.isNew() || ctrl)) { 1095 cyclePrims = false; 1096 osm = old; 1097 } // else defer toggling to mouseRelease time in those cases: 1098 /* 1099 * osm == old -- the true nearest node is the 1100 * selected one osm is a new node -- do not break 1101 * unglue ways in ALT mode ctrl is pressed -- ctrl 1102 * generally works on mouseReleased 1103 */ 1104 } 1105 } 1106 } 1107 } 1108 return osm; 1109 } 1110 1111 /** 1112 * Modifies current selection state and returns the next element in a 1113 * selection cycle given by 1114 * <code>cycleList</code> field 1115 * @return the next element of cycle list 1116 */ 1117 private Collection<OsmPrimitive> cyclePrims() { 1118 if (cycleList.size() <= 1) { 1119 // no real cycling, just return one-element collection with nearest primitive in it 1120 return cycleList; 1121 } 1122 // updateKeyModifiers() already called before! 1123 1124 DataSet ds = getLayerManager().getActiveDataSet(); 1125 OsmPrimitive first = cycleList.iterator().next(), foundInDS = null; 1126 OsmPrimitive nxt = first; 1127 1128 if (cyclePrims && shift) { 1129 for (Iterator<OsmPrimitive> i = cycleList.iterator(); i.hasNext();) { 1130 nxt = i.next(); 1131 if (!nxt.isSelected()) { 1132 break; // take first primitive in cycleList not in sel 1133 } 1134 } 1135 // if primitives 1,2,3 are under cursor, [Alt-press] [Shift-release] gives 1 -> 12 -> 123 1136 } else { 1137 for (Iterator<OsmPrimitive> i = cycleList.iterator(); i.hasNext();) { 1138 nxt = i.next(); 1139 if (nxt.isSelected()) { 1140 foundInDS = nxt; 1141 // first selected primitive in cycleList is found 1142 if (cyclePrims || ctrl) { 1143 ds.clearSelection(foundInDS); // deselect it 1144 nxt = i.hasNext() ? i.next() : first; 1145 // return next one in cycle list (last->first) 1146 } 1147 break; // take next primitive in cycleList 1148 } 1149 } 1150 } 1151 1152 // if "no-alt-cycling" is enabled, Ctrl-Click arrives here. 1153 if (ctrl) { 1154 // a member of cycleList was found in the current dataset selection 1155 if (foundInDS != null) { 1156 // mouse was moved to a different selection group w/ a previous sel 1157 if (!cycleList.contains(cycleStart)) { 1158 ds.clearSelection(cycleList); 1159 cycleStart = foundInDS; 1160 } else if (cycleStart.equals(nxt)) { 1161 // loop detected, insert deselect step 1162 ds.addSelected(nxt); 1163 } 1164 } else { 1165 // setup for iterating a sel group again or a new, different one.. 1166 nxt = cycleList.contains(cycleStart) ? cycleStart : first; 1167 cycleStart = nxt; 1168 } 1169 } else { 1170 cycleStart = null; 1171 } 1172 // return one-element collection with one element to be selected (or added to selection) 1173 return asColl(nxt); 1174 } 1175 } 1176 1177 private class VirtualManager { 1178 1179 private Node virtualNode; 1180 private Collection<WaySegment> virtualWays = new LinkedList<>(); 1181 private int nodeVirtualSize; 1182 private int virtualSnapDistSq2; 1183 private int virtualSpace; 1184 1185 private void init() { 1186 nodeVirtualSize = Config.getPref().getInt("mappaint.node.virtual-size", 8); 1187 int virtualSnapDistSq = Config.getPref().getInt("mappaint.node.virtual-snap-distance", 8); 1188 virtualSnapDistSq2 = virtualSnapDistSq*virtualSnapDistSq; 1189 virtualSpace = Config.getPref().getInt("mappaint.node.virtual-space", 70); 1190 } 1191 1192 /** 1193 * Calculate a virtual node if there is enough visual space to draw a 1194 * crosshair node and the middle of a way segment is clicked. If the 1195 * user drags the crosshair node, it will be added to all ways in 1196 * <code>virtualWays</code>. 1197 * 1198 * @param p the point clicked 1199 * @return whether 1200 * <code>virtualNode</code> and 1201 * <code>virtualWays</code> were setup. 1202 */ 1203 private boolean activateVirtualNodeNearPoint(Point p) { 1204 if (nodeVirtualSize > 0) { 1205 1206 Collection<WaySegment> selVirtualWays = new LinkedList<>(); 1207 Pair<Node, Node> vnp = null, wnp = new Pair<>(null, null); 1208 1209 for (WaySegment ws : mv.getNearestWaySegments(p, mv.isSelectablePredicate)) { 1210 Way w = ws.way; 1211 1212 wnp.a = w.getNode(ws.lowerIndex); 1213 wnp.b = w.getNode(ws.lowerIndex + 1); 1214 MapViewPoint p1 = mv.getState().getPointFor(wnp.a); 1215 MapViewPoint p2 = mv.getState().getPointFor(wnp.b); 1216 if (WireframeMapRenderer.isLargeSegment(p1, p2, virtualSpace)) { 1217 Point2D pc = new Point2D.Double((p1.getInViewX() + p2.getInViewX()) / 2, (p1.getInViewY() + p2.getInViewY()) / 2); 1218 if (p.distanceSq(pc) < virtualSnapDistSq2) { 1219 // Check that only segments on top of each other get added to the 1220 // virtual ways list. Otherwise ways that coincidentally have their 1221 // virtual node at the same spot will be joined which is likely unwanted 1222 Pair.sort(wnp); 1223 if (vnp == null) { 1224 vnp = new Pair<>(wnp.a, wnp.b); 1225 virtualNode = new Node(mv.getLatLon(pc.getX(), pc.getY())); 1226 } 1227 if (vnp.equals(wnp)) { 1228 // if mutiple line segments have the same points, 1229 // add all segments to be splitted to virtualWays list 1230 // if some lines are selected, only their segments will go to virtualWays 1231 (w.isSelected() ? selVirtualWays : virtualWays).add(ws); 1232 } 1233 } 1234 } 1235 } 1236 1237 if (!selVirtualWays.isEmpty()) { 1238 virtualWays = selVirtualWays; 1239 } 1240 } 1241 1242 return !virtualWays.isEmpty(); 1243 } 1244 1245 private void createMiddleNodeFromVirtual(EastNorth currentEN) { 1246 if (startEN == null) // #13724, #14712, #15087 1247 return; 1248 DataSet ds = getLayerManager().getEditDataSet(); 1249 Collection<Command> virtualCmds = new LinkedList<>(); 1250 virtualCmds.add(new AddCommand(ds, virtualNode)); 1251 for (WaySegment virtualWay : virtualWays) { 1252 Way w = virtualWay.way; 1253 Way wnew = new Way(w); 1254 wnew.addNode(virtualWay.lowerIndex + 1, virtualNode); 1255 virtualCmds.add(new ChangeCommand(ds, w, wnew)); 1256 } 1257 virtualCmds.add(new MoveCommand(ds, virtualNode, startEN, currentEN)); 1258 String text = trn("Add and move a virtual new node to way", 1259 "Add and move a virtual new node to {0} ways", virtualWays.size(), 1260 virtualWays.size()); 1261 UndoRedoHandler.getInstance().add(new SequenceCommand(text, virtualCmds)); 1262 ds.setSelected(Collections.singleton((OsmPrimitive) virtualNode)); 1263 clear(); 1264 } 1265 1266 private void clear() { 1267 virtualWays.clear(); 1268 virtualNode = null; 1269 } 1270 1271 private boolean hasVirtualNode() { 1272 return virtualNode != null; 1273 } 1274 1275 private boolean hasVirtualWaysToBeConstructed() { 1276 return !virtualWays.isEmpty(); 1277 } 1278 } 1279 1280 /** 1281 * Returns {@code o} as collection of {@code o}'s type. 1282 * @param <T> object type 1283 * @param o any object 1284 * @return {@code o} as collection of {@code o}'s type. 1285 */ 1286 protected static <T> Collection<T> asColl(T o) { 1287 return o == null ? Collections.emptySet() : Collections.singleton(o); 1288 } 1289}