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