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.Main; 025import org.openstreetmap.josm.actions.MergeNodesAction; 026import org.openstreetmap.josm.command.AddCommand; 027import org.openstreetmap.josm.command.ChangeCommand; 028import org.openstreetmap.josm.command.Command; 029import org.openstreetmap.josm.command.MoveCommand; 030import org.openstreetmap.josm.command.RotateCommand; 031import org.openstreetmap.josm.command.ScaleCommand; 032import org.openstreetmap.josm.command.SequenceCommand; 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.Shortcut; 060import org.openstreetmap.josm.tools.Utils; 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 putValue("help", 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 selectionManager.unregister(mv); 224 mv.removeMouseListener(this); 225 mv.removeMouseMotionListener(this); 226 mv.setVirtualNodesEnabled(false); 227 MapFrame map = MainApplication.getMap(); 228 map.keyDetector.removeModifierExListener(this); 229 map.keyDetector.removeKeyListener(this); 230 removeHighlighting(); 231 } 232 233 @Override 234 public void modifiersExChanged(int modifiers) { 235 if (!MainApplication.isDisplayingMapView() || oldEvent == null) return; 236 if (giveUserFeedback(oldEvent, modifiers)) { 237 mv.repaint(); 238 } 239 } 240 241 /** 242 * handles adding highlights and updating the cursor for the given mouse event. 243 * Please note that the highlighting for merging while moving is handled via mouseDragged. 244 * @param e {@code MouseEvent} which should be used as base for the feedback 245 * @return {@code true} if repaint is required 246 */ 247 private boolean giveUserFeedback(MouseEvent e) { 248 return giveUserFeedback(e, e.getModifiersEx()); 249 } 250 251 /** 252 * handles adding highlights and updating the cursor for the given mouse event. 253 * Please note that the highlighting for merging while moving is handled via mouseDragged. 254 * @param e {@code MouseEvent} which should be used as base for the feedback 255 * @param modifiers define custom keyboard extended modifiers if the ones from MouseEvent are outdated or similar 256 * @return {@code true} if repaint is required 257 */ 258 private boolean giveUserFeedback(MouseEvent e, int modifiers) { 259 Optional<OsmPrimitive> c = Optional.ofNullable( 260 mv.getNearestNodeOrWay(e.getPoint(), mv.isSelectablePredicate, true)); 261 262 updateKeyModifiersEx(modifiers); 263 determineMapMode(c.isPresent()); 264 265 Optional<OsmPrimitive> newHighlight = Optional.empty(); 266 267 virtualManager.clear(); 268 if (mode == Mode.MOVE && !dragInProgress() && virtualManager.activateVirtualNodeNearPoint(e.getPoint())) { 269 DataSet ds = getLayerManager().getActiveDataSet(); 270 if (ds != null && drawTargetHighlight) { 271 ds.setHighlightedVirtualNodes(virtualManager.virtualWays); 272 } 273 mv.setNewCursor(SelectActionCursor.virtual_node.cursor(), this); 274 // don't highlight anything else if a virtual node will be 275 return repaintIfRequired(newHighlight); 276 } 277 278 mv.setNewCursor(getCursor(c.orElse(null)), this); 279 280 // return early if there can't be any highlights 281 if (!drawTargetHighlight || (mode != Mode.MOVE && mode != Mode.SELECT) || !c.isPresent()) 282 return repaintIfRequired(newHighlight); 283 284 // CTRL toggles selection, but if while dragging CTRL means merge 285 final boolean isToggleMode = ctrl && !dragInProgress(); 286 if (c.isPresent() && (isToggleMode || !c.get().isSelected())) { 287 // only highlight primitives that will change the selection 288 // when clicked. I.e. don't highlight selected elements unless 289 // we are in toggle mode. 290 newHighlight = c; 291 } 292 return repaintIfRequired(newHighlight); 293 } 294 295 /** 296 * works out which cursor should be displayed for most of SelectAction's 297 * features. The only exception is the "move" cursor when actually dragging 298 * primitives. 299 * @param nearbyStuff primitives near the cursor 300 * @return the cursor that should be displayed 301 */ 302 private Cursor getCursor(OsmPrimitive nearbyStuff) { 303 String c = "rect"; 304 switch(mode) { 305 case MOVE: 306 if (virtualManager.hasVirtualNode()) { 307 c = "virtual_node"; 308 break; 309 } 310 final OsmPrimitive osm = nearbyStuff; 311 312 if (dragInProgress()) { 313 // only consider merge if ctrl is pressed and there are nodes in 314 // the selection that could be merged 315 if (!ctrl || getLayerManager().getEditDataSet().getSelectedNodes().isEmpty()) { 316 c = "move"; 317 break; 318 } 319 // only show merge to node cursor if nearby node and that node is currently 320 // not being dragged 321 final boolean hasTarget = osm instanceof Node && !osm.isSelected(); 322 c = hasTarget ? "merge_to_node" : "merge"; 323 break; 324 } 325 326 c = (osm instanceof Node) ? "node" : c; 327 c = (osm instanceof Way) ? "way" : c; 328 if (shift) { 329 c += "_add"; 330 } else if (ctrl) { 331 c += osm == null || osm.isSelected() ? "_rm" : "_add"; 332 } 333 break; 334 case ROTATE: 335 c = "rotate"; 336 break; 337 case SCALE: 338 c = "scale"; 339 break; 340 case SELECT: 341 if (lassoMode) { 342 c = "lasso"; 343 } else { 344 c = "rect" + (shift ? "_add" : (ctrl && !Main.isPlatformOsx() ? "_rm" : "")); 345 } 346 break; 347 } 348 return SelectActionCursor.valueOf(c).cursor(); 349 } 350 351 /** 352 * Removes all existing highlights. 353 * @return true if a repaint is required 354 */ 355 private boolean removeHighlighting() { 356 boolean needsRepaint = false; 357 OsmData<?, ?, ?, ?> ds = getLayerManager().getActiveData(); 358 if (ds != null && !ds.getHighlightedVirtualNodes().isEmpty()) { 359 needsRepaint = true; 360 ds.clearHighlightedVirtualNodes(); 361 } 362 if (!currentHighlight.isPresent()) { 363 return needsRepaint; 364 } else { 365 currentHighlight.get().setHighlighted(false); 366 } 367 currentHighlight = Optional.empty(); 368 return true; 369 } 370 371 private boolean repaintIfRequired(Optional<OsmPrimitive> newHighlight) { 372 if (!drawTargetHighlight || currentHighlight.equals(newHighlight)) 373 return false; 374 currentHighlight.ifPresent(osm -> osm.setHighlighted(false)); 375 newHighlight.ifPresent(osm -> osm.setHighlighted(true)); 376 currentHighlight = newHighlight; 377 return true; 378 } 379 380 /** 381 * Look, whether any object is selected. If not, select the nearest node. 382 * If there are no nodes in the dataset, do nothing. 383 * 384 * If the user did not press the left mouse button, do nothing. 385 * 386 * Also remember the starting position of the movement and change the mouse 387 * cursor to movement. 388 */ 389 @Override 390 public void mousePressed(MouseEvent e) { 391 mouseDownButton = e.getButton(); 392 // return early 393 if (!mv.isActiveLayerVisible() || !(Boolean) this.getValue("active") || mouseDownButton != MouseEvent.BUTTON1) 394 return; 395 396 // left-button mouse click only is processed here 397 398 // request focus in order to enable the expected keyboard shortcuts 399 mv.requestFocus(); 400 401 // update which modifiers are pressed (shift, alt, ctrl) 402 updateKeyModifiers(e); 403 404 // We don't want to change to draw tool if the user tries to (de)select 405 // stuff but accidentally clicks in an empty area when selection is empty 406 cancelDrawMode = shift || ctrl; 407 didMouseDrag = false; 408 initialMoveThresholdExceeded = false; 409 mouseDownTime = System.currentTimeMillis(); 410 lastMousePos = e.getPoint(); 411 startEN = mv.getEastNorth(lastMousePos.x, lastMousePos.y); 412 413 // primitives under cursor are stored in c collection 414 415 OsmPrimitive nearestPrimitive = mv.getNearestNodeOrWay(e.getPoint(), mv.isSelectablePredicate, true); 416 417 determineMapMode(nearestPrimitive != null); 418 419 switch(mode) { 420 case ROTATE: 421 case SCALE: 422 // if nothing was selected, select primitive under cursor for scaling or rotating 423 DataSet ds = getLayerManager().getEditDataSet(); 424 if (ds.selectionEmpty()) { 425 ds.setSelected(asColl(nearestPrimitive)); 426 } 427 428 // Mode.select redraws when selectPrims is called 429 // Mode.move redraws when mouseDragged is called 430 // Mode.rotate redraws here 431 // Mode.scale redraws here 432 break; 433 case MOVE: 434 // also include case when some primitive is under cursor and no shift+ctrl / alt+ctrl is pressed 435 // so this is not movement, but selection on primitive under cursor 436 if (!cancelDrawMode && nearestPrimitive instanceof Way) { 437 virtualManager.activateVirtualNodeNearPoint(e.getPoint()); 438 } 439 OsmPrimitive toSelect = cycleManager.cycleSetup(nearestPrimitive, e.getPoint()); 440 selectPrims(asColl(toSelect), false, false); 441 useLastMoveCommandIfPossible(); 442 // Schedule a timer to update status line "initialMoveDelay+1" ms in the future 443 GuiHelper.scheduleTimer(initialMoveDelay+1, evt -> updateStatusLine(), false); 444 break; 445 case SELECT: 446 default: 447 if (!(ctrl && Main.isPlatformOsx())) { 448 // start working with rectangle or lasso 449 selectionManager.register(mv, lassoMode); 450 selectionManager.mousePressed(e); 451 break; 452 } 453 } 454 if (giveUserFeedback(e)) { 455 mv.repaint(); 456 } 457 updateStatusLine(); 458 } 459 460 @Override 461 public void mouseMoved(MouseEvent e) { 462 // Mac OSX simulates with ctrl + mouse 1 the second mouse button hence no dragging events get fired. 463 if (Main.isPlatformOsx() && (mode == Mode.ROTATE || mode == Mode.SCALE)) { 464 mouseDragged(e); 465 return; 466 } 467 oldEvent = e; 468 if (giveUserFeedback(e)) { 469 mv.repaint(); 470 } 471 } 472 473 /** 474 * If the left mouse button is pressed, move all currently selected 475 * objects (if one of them is under the mouse) or the current one under the 476 * mouse (which will become selected). 477 */ 478 @Override 479 public void mouseDragged(MouseEvent e) { 480 if (!mv.isActiveLayerVisible()) 481 return; 482 483 // Swing sends random mouseDragged events when closing dialogs by double-clicking their top-left icon on Windows 484 // Ignore such false events to prevent issues like #7078 485 if (mouseDownButton == MouseEvent.BUTTON1 && mouseReleaseTime > mouseDownTime) 486 return; 487 488 cancelDrawMode = true; 489 if (mode == Mode.SELECT) { 490 // Unregisters selectionManager if ctrl has been pressed after mouse click on Mac OS X in order to move the map 491 if (ctrl && Main.isPlatformOsx()) { 492 selectionManager.unregister(mv); 493 // Make sure correct cursor is displayed 494 mv.setNewCursor(Cursor.MOVE_CURSOR, this); 495 } 496 return; 497 } 498 499 // do not count anything as a move if it lasts less than 100 milliseconds. 500 if ((mode == Mode.MOVE) && (System.currentTimeMillis() - mouseDownTime < initialMoveDelay)) 501 return; 502 503 if (mode != Mode.ROTATE && mode != Mode.SCALE && (e.getModifiersEx() & MouseEvent.BUTTON1_DOWN_MASK) == 0) { 504 // button is pressed in rotate mode 505 return; 506 } 507 508 if (mode == Mode.MOVE) { 509 // If ctrl is pressed we are in merge mode. Look for a nearby node, 510 // highlight it and adjust the cursor accordingly. 511 final boolean canMerge = ctrl && !getLayerManager().getEditDataSet().getSelectedNodes().isEmpty(); 512 final OsmPrimitive p = canMerge ? findNodeToMergeTo(e.getPoint()) : null; 513 boolean needsRepaint = removeHighlighting(); 514 if (p != null) { 515 p.setHighlighted(true); 516 currentHighlight = Optional.of(p); 517 needsRepaint = true; 518 } 519 mv.setNewCursor(getCursor(p), this); 520 // also update the stored mouse event, so we can display the correct cursor 521 // when dragging a node onto another one and then press CTRL to merge 522 oldEvent = e; 523 if (needsRepaint) { 524 mv.repaint(); 525 } 526 } 527 528 if (startingDraggingPos == null) { 529 startingDraggingPos = new Point(e.getX(), e.getY()); 530 } 531 532 if (lastMousePos == null) { 533 lastMousePos = e.getPoint(); 534 return; 535 } 536 537 if (!initialMoveThresholdExceeded) { 538 int dp = (int) lastMousePos.distance(e.getX(), e.getY()); 539 if (dp < initialMoveThreshold) 540 return; // ignore small drags 541 initialMoveThresholdExceeded = true; //no more ingnoring uintil nex mouse press 542 } 543 if (e.getPoint().equals(lastMousePos)) 544 return; 545 546 EastNorth currentEN = mv.getEastNorth(e.getX(), e.getY()); 547 548 if (virtualManager.hasVirtualWaysToBeConstructed()) { 549 virtualManager.createMiddleNodeFromVirtual(currentEN); 550 } else { 551 if (!updateCommandWhileDragging(currentEN)) return; 552 } 553 554 mv.repaint(); 555 if (mode != Mode.SCALE) { 556 lastMousePos = e.getPoint(); 557 } 558 559 didMouseDrag = true; 560 } 561 562 @Override 563 public void mouseExited(MouseEvent e) { 564 if (removeHighlighting()) { 565 mv.repaint(); 566 } 567 } 568 569 @Override 570 public void mouseReleased(MouseEvent e) { 571 if (!mv.isActiveLayerVisible()) 572 return; 573 574 startingDraggingPos = null; 575 mouseReleaseTime = System.currentTimeMillis(); 576 MapFrame map = MainApplication.getMap(); 577 578 if (mode == Mode.SELECT) { 579 if (e.getButton() != MouseEvent.BUTTON1) { 580 return; 581 } 582 selectionManager.endSelecting(e); 583 selectionManager.unregister(mv); 584 585 // Select Draw Tool if no selection has been made 586 if (!cancelDrawMode && getLayerManager().getActiveDataSet().selectionEmpty()) { 587 map.selectDrawTool(true); 588 updateStatusLine(); 589 return; 590 } 591 } 592 593 if (mode == Mode.MOVE && e.getButton() == MouseEvent.BUTTON1) { 594 if (!didMouseDrag) { 595 // only built in move mode 596 virtualManager.clear(); 597 // do nothing if the click was to short too be recognized as a drag, 598 // but the release position is farther than 10px away from the press position 599 if (lastMousePos == null || lastMousePos.distanceSq(e.getPoint()) < 100) { 600 updateKeyModifiers(e); 601 selectPrims(cycleManager.cyclePrims(), true, false); 602 603 // If the user double-clicked a node, change to draw mode 604 Collection<OsmPrimitive> c = getLayerManager().getEditDataSet().getSelected(); 605 if (e.getClickCount() >= 2 && c.size() == 1 && c.iterator().next() instanceof Node) { 606 // We need to do it like this as otherwise drawAction will see a double 607 // click and switch back to SelectMode 608 MainApplication.worker.execute(() -> map.selectDrawTool(true)); 609 return; 610 } 611 } 612 } else { 613 confirmOrUndoMovement(e); 614 } 615 } 616 617 mode = null; 618 619 // simply remove any highlights if the middle click popup is active because 620 // the highlights don't depend on the cursor position there. If something was 621 // selected beforehand this would put us into move mode as well, which breaks 622 // the cycling through primitives on top of each other (see #6739). 623 if (e.getButton() == MouseEvent.BUTTON2) { 624 removeHighlighting(); 625 } else { 626 giveUserFeedback(e); 627 } 628 updateStatusLine(); 629 } 630 631 @Override 632 public void selectionEnded(Rectangle r, MouseEvent e) { 633 updateKeyModifiers(e); 634 selectPrims(selectionManager.getSelectedObjects(alt), true, true); 635 } 636 637 @Override 638 public void doKeyPressed(KeyEvent e) { 639 if (!repeatedKeySwitchLassoOption || !MainApplication.isDisplayingMapView() || !getShortcut().isEvent(e)) 640 return; 641 if (Logging.isDebugEnabled()) { 642 Logging.debug("{0} consuming event {1}", getClass().getName(), e); 643 } 644 e.consume(); 645 MapFrame map = MainApplication.getMap(); 646 if (!lassoMode) { 647 map.selectMapMode(map.mapModeSelectLasso); 648 } else { 649 map.selectMapMode(map.mapModeSelect); 650 } 651 } 652 653 @Override 654 public void doKeyReleased(KeyEvent e) { 655 // Do nothing 656 } 657 658 /** 659 * sets the mapmode according to key modifiers and if there are any 660 * selectables nearby. Everything has to be pre-determined for this 661 * function; its main purpose is to centralize what the modifiers do. 662 * @param hasSelectionNearby {@code true} if some primitves are selectable nearby 663 */ 664 private void determineMapMode(boolean hasSelectionNearby) { 665 if (getLayerManager().getEditDataSet() != null) { 666 if (shift && ctrl) { 667 mode = Mode.ROTATE; 668 } else if (alt && ctrl) { 669 mode = Mode.SCALE; 670 } else if (hasSelectionNearby || dragInProgress()) { 671 mode = Mode.MOVE; 672 } else { 673 mode = Mode.SELECT; 674 } 675 } else { 676 mode = Mode.SELECT; 677 } 678 } 679 680 /** 681 * Determines whenever elements have been grabbed and moved (i.e. the initial 682 * thresholds have been exceeded) and is still in progress (i.e. mouse button still pressed) 683 * @return true if a drag is in progress 684 */ 685 private boolean dragInProgress() { 686 return didMouseDrag && startingDraggingPos != null; 687 } 688 689 /** 690 * Create or update data modification command while dragging mouse - implementation of 691 * continuous moving, scaling and rotation 692 * @param currentEN - mouse position 693 * @return status of action (<code>true</code> when action was performed) 694 */ 695 private boolean updateCommandWhileDragging(EastNorth currentEN) { 696 // Currently we support only transformations which do not affect relations. 697 // So don't add them in the first place to make handling easier 698 DataSet ds = getLayerManager().getEditDataSet(); 699 Collection<OsmPrimitive> selection = ds.getSelectedNodesAndWays(); 700 if (selection.isEmpty()) { // if nothing was selected to drag, just select nearest node/way to the cursor 701 OsmPrimitive nearestPrimitive = mv.getNearestNodeOrWay(mv.getPoint(startEN), mv.isSelectablePredicate, true); 702 ds.setSelected(nearestPrimitive); 703 } 704 705 Collection<Node> affectedNodes = AllNodesVisitor.getAllNodes(selection); 706 // for these transformations, having only one node makes no sense - quit silently 707 if (affectedNodes.size() < 2 && (mode == Mode.ROTATE || mode == Mode.SCALE)) { 708 return false; 709 } 710 Command c = getLastCommandInDataset(ds); 711 if (mode == Mode.MOVE) { 712 if (startEN == null) return false; // fix #8128 713 ds.beginUpdate(); 714 try { 715 if (c instanceof MoveCommand && affectedNodes.equals(((MoveCommand) c).getParticipatingPrimitives())) { 716 ((MoveCommand) c).saveCheckpoint(); 717 ((MoveCommand) c).applyVectorTo(currentEN); 718 } else if (!selection.isEmpty()) { 719 c = new MoveCommand(selection, startEN, currentEN); 720 MainApplication.undoRedo.add(c); 721 } 722 for (Node n : affectedNodes) { 723 LatLon ll = n.getCoor(); 724 if (ll != null && ll.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 Main.parent, 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 MainApplication.undoRedo.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 MainApplication.undoRedo.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 = MainApplication.undoRedo.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 MainApplication.undoRedo.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 MainApplication.undoRedo.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(Main.parent, 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<OsmPrimitive> elementsToTest = new HashSet<>(ds.getSelected()); 884 for (Way osm : ds.getSelectedWays()) { 885 elementsToTest.addAll(osm.getNodes()); 886 } 887 for (OsmPrimitive node : Utils.filteredCollection(elementsToTest, Node.class)) { 888 for (Way ref : Utils.filteredCollection(node.getReferrers(), Way.class)) { 889 if (ref.isDisabledAndHidden()) { 890 return true; 891 } 892 } 893 } 894 return false; 895 } 896 897 /** 898 * Merges the selected nodes to the one closest to the given mouse position if the control 899 * key is pressed. If there is no such node, no action will be done and no error will be 900 * reported. If there is, it will execute the merge and add it to the undo buffer. 901 * @param p mouse position 902 */ 903 private void mergePrims(Point p) { 904 DataSet ds = getLayerManager().getEditDataSet(); 905 Collection<Node> selNodes = ds.getSelectedNodes(); 906 if (selNodes.isEmpty()) 907 return; 908 909 Node target = findNodeToMergeTo(p); 910 if (target == null) 911 return; 912 913 if (selNodes.size() == 1) { 914 // Move all selected primitive to preserve shape #10748 915 Collection<OsmPrimitive> selection = ds.getSelectedNodesAndWays(); 916 Collection<Node> affectedNodes = AllNodesVisitor.getAllNodes(selection); 917 Command c = getLastCommandInDataset(ds); 918 ds.beginUpdate(); 919 try { 920 if (c instanceof MoveCommand && affectedNodes.equals(((MoveCommand) c).getParticipatingPrimitives())) { 921 Node selectedNode = selNodes.iterator().next(); 922 EastNorth selectedEN = selectedNode.getEastNorth(); 923 EastNorth targetEN = target.getEastNorth(); 924 ((MoveCommand) c).moveAgain(targetEN.getX() - selectedEN.getX(), 925 targetEN.getY() - selectedEN.getY()); 926 } 927 } finally { 928 ds.endUpdate(); 929 } 930 } 931 932 Collection<Node> nodesToMerge = new LinkedList<>(selNodes); 933 nodesToMerge.add(target); 934 mergeNodes(MainApplication.getLayerManager().getEditLayer(), nodesToMerge, target); 935 } 936 937 /** 938 * Merge nodes using {@code MergeNodesAction}. 939 * Can be overridden for testing purpose. 940 * @param layer layer the reference data layer. Must not be null 941 * @param nodes the collection of nodes. Ignored if null 942 * @param targetLocationNode this node's location will be used for the target node 943 */ 944 public void mergeNodes(OsmDataLayer layer, Collection<Node> nodes, 945 Node targetLocationNode) { 946 MergeNodesAction.doMergeNodes(layer, nodes, targetLocationNode); 947 } 948 949 /** 950 * Tries to find a node to merge to when in move-merge mode for the current mouse 951 * position. Either returns the node or null, if no suitable one is nearby. 952 * @param p mouse position 953 * @return node to merge to, or null 954 */ 955 private Node findNodeToMergeTo(Point p) { 956 Collection<Node> target = mv.getNearestNodes(p, 957 getLayerManager().getEditDataSet().getSelectedNodes(), 958 mv.isSelectablePredicate); 959 return target.isEmpty() ? null : target.iterator().next(); 960 } 961 962 private void selectPrims(Collection<OsmPrimitive> prims, boolean released, boolean area) { 963 DataSet ds = getLayerManager().getActiveDataSet(); 964 965 // not allowed together: do not change dataset selection, return early 966 // Virtual Ways: if non-empty the cursor is above a virtual node. So don't highlight 967 // anything if about to drag the virtual node (i.e. !released) but continue if the 968 // cursor is only released above a virtual node by accident (i.e. released). See #7018 969 if (ds == null || (shift && ctrl) || (ctrl && !released) || (virtualManager.hasVirtualWaysToBeConstructed() && !released)) 970 return; 971 972 if (!released) { 973 // Don't replace the selection if the user clicked on a 974 // selected object (it breaks moving of selected groups). 975 // Do it later, on mouse release. 976 shift |= ds.getSelected().containsAll(prims); 977 } 978 979 if (ctrl) { 980 // Ctrl on an item toggles its selection status, 981 // but Ctrl on an *area* just clears those items 982 // out of the selection. 983 if (area) { 984 ds.clearSelection(prims); 985 } else { 986 ds.toggleSelected(prims); 987 } 988 } else if (shift) { 989 // add prims to an existing selection 990 ds.addSelected(prims); 991 } else { 992 // clear selection, then select the prims clicked 993 ds.setSelected(prims); 994 } 995 } 996 997 /** 998 * Returns the current select mode. 999 * @return the select mode 1000 * @since 7543 1001 */ 1002 public final Mode getMode() { 1003 return mode; 1004 } 1005 1006 @Override 1007 public String getModeHelpText() { 1008 if (mouseDownButton == MouseEvent.BUTTON1 && mouseReleaseTime < mouseDownTime) { 1009 if (mode == Mode.SELECT) 1010 return tr("Release the mouse button to select the objects in the rectangle."); 1011 else if (mode == Mode.MOVE && (System.currentTimeMillis() - mouseDownTime >= initialMoveDelay)) { 1012 final DataSet ds = getLayerManager().getEditDataSet(); 1013 final boolean canMerge = ds != null && !ds.getSelectedNodes().isEmpty(); 1014 final String mergeHelp = canMerge ? (' ' + tr("Ctrl to merge with nearest node.")) : ""; 1015 return tr("Release the mouse button to stop moving.") + mergeHelp; 1016 } else if (mode == Mode.ROTATE) 1017 return tr("Release the mouse button to stop rotating."); 1018 else if (mode == Mode.SCALE) 1019 return tr("Release the mouse button to stop scaling."); 1020 } 1021 return tr("Move objects by dragging; Shift to add to selection (Ctrl to toggle); Shift-Ctrl to rotate selected; " + 1022 "Alt-Ctrl to scale selected; or change selection"); 1023 } 1024 1025 @Override 1026 public boolean layerIsSupported(Layer l) { 1027 return l instanceof OsmDataLayer; 1028 } 1029 1030 /** 1031 * Enable or diable the lasso mode 1032 * @param lassoMode true to enable the lasso mode, false otherwise 1033 */ 1034 public void setLassoMode(boolean lassoMode) { 1035 this.selectionManager.setLassoMode(lassoMode); 1036 this.lassoMode = lassoMode; 1037 } 1038 1039 private final transient CycleManager cycleManager = new CycleManager(); 1040 private final transient VirtualManager virtualManager = new VirtualManager(); 1041 1042 private class CycleManager { 1043 1044 private Collection<OsmPrimitive> cycleList = Collections.emptyList(); 1045 private boolean cyclePrims; 1046 private OsmPrimitive cycleStart; 1047 private boolean waitForMouseUpParameter; 1048 private boolean multipleMatchesParameter; 1049 /** 1050 * read preferences 1051 */ 1052 private void init() { 1053 waitForMouseUpParameter = Config.getPref().getBoolean("mappaint.select.waits-for-mouse-up", false); 1054 multipleMatchesParameter = Config.getPref().getBoolean("selectaction.cycles.multiple.matches", false); 1055 } 1056 1057 /** 1058 * Determine primitive to be selected and build cycleList 1059 * @param nearest primitive found by simple method 1060 * @param p point where user clicked 1061 * @return OsmPrimitive to be selected 1062 */ 1063 private OsmPrimitive cycleSetup(OsmPrimitive nearest, Point p) { 1064 OsmPrimitive osm = null; 1065 1066 if (nearest != null) { 1067 osm = nearest; 1068 1069 if (!(alt || multipleMatchesParameter)) { 1070 // no real cycling, just one element in cycle list 1071 cycleList = asColl(osm); 1072 1073 if (waitForMouseUpParameter) { 1074 // prefer a selected nearest node or way, if possible 1075 osm = mv.getNearestNodeOrWay(p, mv.isSelectablePredicate, true); 1076 } 1077 } else { 1078 // Alt + left mouse button pressed: we need to build cycle list 1079 cycleList = mv.getAllNearest(p, mv.isSelectablePredicate); 1080 1081 if (cycleList.size() > 1) { 1082 cyclePrims = false; 1083 1084 // find first already selected element in cycle list 1085 OsmPrimitive old = osm; 1086 for (OsmPrimitive o : cycleList) { 1087 if (o.isSelected()) { 1088 cyclePrims = true; 1089 osm = o; 1090 break; 1091 } 1092 } 1093 1094 // special case: for cycle groups of 2, we can toggle to the 1095 // true nearest primitive on mousePressed right away 1096 if (cycleList.size() == 2 && !waitForMouseUpParameter) { 1097 if (!(osm.equals(old) || osm.isNew() || ctrl)) { 1098 cyclePrims = false; 1099 osm = old; 1100 } // else defer toggling to mouseRelease time in those cases: 1101 /* 1102 * osm == old -- the true nearest node is the 1103 * selected one osm is a new node -- do not break 1104 * unglue ways in ALT mode ctrl is pressed -- ctrl 1105 * generally works on mouseReleased 1106 */ 1107 } 1108 } 1109 } 1110 } 1111 return osm; 1112 } 1113 1114 /** 1115 * Modifies current selection state and returns the next element in a 1116 * selection cycle given by 1117 * <code>cycleList</code> field 1118 * @return the next element of cycle list 1119 */ 1120 private Collection<OsmPrimitive> cyclePrims() { 1121 if (cycleList.size() <= 1) { 1122 // no real cycling, just return one-element collection with nearest primitive in it 1123 return cycleList; 1124 } 1125 // updateKeyModifiers() already called before! 1126 1127 DataSet ds = getLayerManager().getActiveDataSet(); 1128 OsmPrimitive first = cycleList.iterator().next(), foundInDS = null; 1129 OsmPrimitive nxt = first; 1130 1131 if (cyclePrims && shift) { 1132 for (Iterator<OsmPrimitive> i = cycleList.iterator(); i.hasNext();) { 1133 nxt = i.next(); 1134 if (!nxt.isSelected()) { 1135 break; // take first primitive in cycleList not in sel 1136 } 1137 } 1138 // if primitives 1,2,3 are under cursor, [Alt-press] [Shift-release] gives 1 -> 12 -> 123 1139 } else { 1140 for (Iterator<OsmPrimitive> i = cycleList.iterator(); i.hasNext();) { 1141 nxt = i.next(); 1142 if (nxt.isSelected()) { 1143 foundInDS = nxt; 1144 // first selected primitive in cycleList is found 1145 if (cyclePrims || ctrl) { 1146 ds.clearSelection(foundInDS); // deselect it 1147 nxt = i.hasNext() ? i.next() : first; 1148 // return next one in cycle list (last->first) 1149 } 1150 break; // take next primitive in cycleList 1151 } 1152 } 1153 } 1154 1155 // if "no-alt-cycling" is enabled, Ctrl-Click arrives here. 1156 if (ctrl) { 1157 // a member of cycleList was found in the current dataset selection 1158 if (foundInDS != null) { 1159 // mouse was moved to a different selection group w/ a previous sel 1160 if (!cycleList.contains(cycleStart)) { 1161 ds.clearSelection(cycleList); 1162 cycleStart = foundInDS; 1163 } else if (cycleStart.equals(nxt)) { 1164 // loop detected, insert deselect step 1165 ds.addSelected(nxt); 1166 } 1167 } else { 1168 // setup for iterating a sel group again or a new, different one.. 1169 nxt = cycleList.contains(cycleStart) ? cycleStart : first; 1170 cycleStart = nxt; 1171 } 1172 } else { 1173 cycleStart = null; 1174 } 1175 // return one-element collection with one element to be selected (or added to selection) 1176 return asColl(nxt); 1177 } 1178 } 1179 1180 private class VirtualManager { 1181 1182 private Node virtualNode; 1183 private Collection<WaySegment> virtualWays = new LinkedList<>(); 1184 private int nodeVirtualSize; 1185 private int virtualSnapDistSq2; 1186 private int virtualSpace; 1187 1188 private void init() { 1189 nodeVirtualSize = Config.getPref().getInt("mappaint.node.virtual-size", 8); 1190 int virtualSnapDistSq = Config.getPref().getInt("mappaint.node.virtual-snap-distance", 8); 1191 virtualSnapDistSq2 = virtualSnapDistSq*virtualSnapDistSq; 1192 virtualSpace = Config.getPref().getInt("mappaint.node.virtual-space", 70); 1193 } 1194 1195 /** 1196 * Calculate a virtual node if there is enough visual space to draw a 1197 * crosshair node and the middle of a way segment is clicked. If the 1198 * user drags the crosshair node, it will be added to all ways in 1199 * <code>virtualWays</code>. 1200 * 1201 * @param p the point clicked 1202 * @return whether 1203 * <code>virtualNode</code> and 1204 * <code>virtualWays</code> were setup. 1205 */ 1206 private boolean activateVirtualNodeNearPoint(Point p) { 1207 if (nodeVirtualSize > 0) { 1208 1209 Collection<WaySegment> selVirtualWays = new LinkedList<>(); 1210 Pair<Node, Node> vnp = null, wnp = new Pair<>(null, null); 1211 1212 for (WaySegment ws : mv.getNearestWaySegments(p, mv.isSelectablePredicate)) { 1213 Way w = ws.way; 1214 1215 wnp.a = w.getNode(ws.lowerIndex); 1216 wnp.b = w.getNode(ws.lowerIndex + 1); 1217 MapViewPoint p1 = mv.getState().getPointFor(wnp.a); 1218 MapViewPoint p2 = mv.getState().getPointFor(wnp.b); 1219 if (WireframeMapRenderer.isLargeSegment(p1, p2, virtualSpace)) { 1220 Point2D pc = new Point2D.Double((p1.getInViewX() + p2.getInViewX()) / 2, (p1.getInViewY() + p2.getInViewY()) / 2); 1221 if (p.distanceSq(pc) < virtualSnapDistSq2) { 1222 // Check that only segments on top of each other get added to the 1223 // virtual ways list. Otherwise ways that coincidentally have their 1224 // virtual node at the same spot will be joined which is likely unwanted 1225 Pair.sort(wnp); 1226 if (vnp == null) { 1227 vnp = new Pair<>(wnp.a, wnp.b); 1228 virtualNode = new Node(mv.getLatLon(pc.getX(), pc.getY())); 1229 } 1230 if (vnp.equals(wnp)) { 1231 // if mutiple line segments have the same points, 1232 // add all segments to be splitted to virtualWays list 1233 // if some lines are selected, only their segments will go to virtualWays 1234 (w.isSelected() ? selVirtualWays : virtualWays).add(ws); 1235 } 1236 } 1237 } 1238 } 1239 1240 if (!selVirtualWays.isEmpty()) { 1241 virtualWays = selVirtualWays; 1242 } 1243 } 1244 1245 return !virtualWays.isEmpty(); 1246 } 1247 1248 private void createMiddleNodeFromVirtual(EastNorth currentEN) { 1249 DataSet ds = getLayerManager().getEditDataSet(); 1250 Collection<Command> virtualCmds = new LinkedList<>(); 1251 virtualCmds.add(new AddCommand(ds, virtualNode)); 1252 for (WaySegment virtualWay : virtualWays) { 1253 Way w = virtualWay.way; 1254 Way wnew = new Way(w); 1255 wnew.addNode(virtualWay.lowerIndex + 1, virtualNode); 1256 virtualCmds.add(new ChangeCommand(ds, w, wnew)); 1257 } 1258 virtualCmds.add(new MoveCommand(ds, virtualNode, startEN, currentEN)); 1259 String text = trn("Add and move a virtual new node to way", 1260 "Add and move a virtual new node to {0} ways", virtualWays.size(), 1261 virtualWays.size()); 1262 MainApplication.undoRedo.add(new SequenceCommand(text, virtualCmds)); 1263 ds.setSelected(Collections.singleton((OsmPrimitive) virtualNode)); 1264 clear(); 1265 } 1266 1267 private void clear() { 1268 virtualWays.clear(); 1269 virtualNode = null; 1270 } 1271 1272 private boolean hasVirtualNode() { 1273 return virtualNode != null; 1274 } 1275 1276 private boolean hasVirtualWaysToBeConstructed() { 1277 return !virtualWays.isEmpty(); 1278 } 1279 } 1280 1281 /** 1282 * Returns {@code o} as collection of {@code o}'s type. 1283 * @param <T> object type 1284 * @param o any object 1285 * @return {@code o} as collection of {@code o}'s type. 1286 */ 1287 protected static <T> Collection<T> asColl(T o) { 1288 return o == null ? Collections.emptySet() : Collections.singleton(o); 1289 } 1290}