// License: GPL. Copyright 2007 by Immanuel Scholz and others package org.openstreetmap.josm.actions.mapmode; import java.awt.*; import static org.openstreetmap.josm.gui.help.HelpUtil.ht; import static org.openstreetmap.josm.tools.I18n.tr; import static org.openstreetmap.josm.tools.I18n.trn; import java.awt.event.AWTEventListener; import java.awt.event.InputEvent; import java.awt.event.KeyEvent; import java.awt.event.MouseEvent; import java.awt.geom.Point2D; import java.util.Collection; import java.util.Collections; import java.util.HashSet; import java.util.Iterator; import java.util.LinkedList; import java.util.Set; import javax.swing.JOptionPane; import org.openstreetmap.josm.Main; import org.openstreetmap.josm.actions.MergeNodesAction; import org.openstreetmap.josm.command.AddCommand; import org.openstreetmap.josm.command.ChangeCommand; import org.openstreetmap.josm.command.Command; import org.openstreetmap.josm.command.MoveCommand; import org.openstreetmap.josm.command.RotateCommand; import org.openstreetmap.josm.command.ScaleCommand; import org.openstreetmap.josm.command.SequenceCommand; import org.openstreetmap.josm.data.coor.EastNorth; import org.openstreetmap.josm.data.osm.DataSet; import org.openstreetmap.josm.data.osm.Node; import org.openstreetmap.josm.data.osm.OsmPrimitive; import org.openstreetmap.josm.data.osm.Way; import org.openstreetmap.josm.data.osm.WaySegment; import org.openstreetmap.josm.data.osm.visitor.AllNodesVisitor; import org.openstreetmap.josm.data.osm.visitor.paint.WireframeMapRenderer; import org.openstreetmap.josm.gui.ExtendedDialog; import org.openstreetmap.josm.gui.MapFrame; import org.openstreetmap.josm.gui.MapView; import org.openstreetmap.josm.gui.SelectionManager; import org.openstreetmap.josm.gui.SelectionManager.SelectionEnded; import org.openstreetmap.josm.gui.layer.Layer; import org.openstreetmap.josm.gui.layer.OsmDataLayer; import org.openstreetmap.josm.tools.ImageProvider; import org.openstreetmap.josm.tools.Pair; import org.openstreetmap.josm.tools.PlatformHookOsx; import org.openstreetmap.josm.tools.Shortcut; /** * Move is an action that can move all kind of OsmPrimitives (except keys for now). * * If an selected object is under the mouse when dragging, move all selected objects. * If an unselected object is under the mouse when dragging, it becomes selected * and will be moved. * If no object is under the mouse, move all selected objects (if any) * * @author imi */ public class SelectAction extends MapMode implements AWTEventListener, SelectionEnded { // "select" means the selection rectangle and "move" means either dragging // or select if no mouse movement occurs (i.e. just clicking) enum Mode { move, rotate, scale, select } // contains all possible cases the cursor can be in the SelectAction static private enum SelectActionCursor { rect("normal", "selection"), rect_add("normal", "select_add"), rect_rm("normal", "select_remove"), way("normal", "select_way"), way_add("normal", "select_way_add"), way_rm("normal", "select_way_remove"), node("normal", "select_node"), node_add("normal", "select_node_add"), node_rm("normal", "select_node_remove"), virtual_node("normal", "addnode"), scale("scale", null), rotate("rotate", null), merge("crosshair", null), lasso("normal", "rope"), merge_to_node("crosshair", "joinnode"), move(Cursor.MOVE_CURSOR); private final Cursor c; private SelectActionCursor(String main, String sub) { c = ImageProvider.getCursor(main, sub); } private SelectActionCursor(int systemCursor) { c = Cursor.getPredefinedCursor(systemCursor); } public Cursor cursor() { return c; } } private boolean lassoMode = false; // Cache previous mouse event (needed when only the modifier keys are // pressed but the mouse isn't moved) private MouseEvent oldEvent = null; private Mode mode = null; private SelectionManager selectionManager; private boolean cancelDrawMode = false; private boolean drawTargetHighlight; private boolean didMouseDrag = false; /** * The component this SelectAction is associated with. */ private final MapView mv; /** * The old cursor before the user pressed the mouse button. */ private Point startingDraggingPos; /** * The last known position of the mouse. */ private Point lastMousePos; /** * The time of the user mouse down event. */ private long mouseDownTime = 0; /** * The pressed button of the user mouse down event. */ private int mouseDownButton = 0; /** * The time of the user mouse down event. */ private long mouseReleaseTime = 0; /** * The time which needs to pass between click and release before something * counts as a move, in milliseconds */ private int initialMoveDelay; /** * The screen distance which needs to be travelled before something * counts as a move, in pixels */ private int initialMoveThreshold; private boolean initialMoveThresholdExceeded = false; /** * elements that have been highlighted in the previous iteration. Used * to remove the highlight from them again as otherwise the whole data * set would have to be checked. */ private Set oldHighlights = new HashSet(); /** * Create a new SelectAction * @param mapFrame The MapFrame this action belongs to. */ public SelectAction(MapFrame mapFrame) { super(tr("Select"), "move/move", tr("Select, move, scale and rotate objects"), Shortcut.registerShortcut("mapmode:select", tr("Mode: {0}", tr("Select")), KeyEvent.VK_S, Shortcut.DIRECT), mapFrame, ImageProvider.getCursor("normal", "selection")); mv = mapFrame.mapView; putValue("help", ht("/Action/Select")); selectionManager = new SelectionManager(this, false, mv); initialMoveDelay = Main.pref.getInteger("edit.initial-move-delay", 200); initialMoveThreshold = Main.pref.getInteger("edit.initial-move-threshold", 5); } @Override public void enterMode() { super.enterMode(); mv.addMouseListener(this); mv.addMouseMotionListener(this); mv.setVirtualNodesEnabled(Main.pref.getInteger("mappaint.node.virtual-size", 8) != 0); drawTargetHighlight = Main.pref.getBoolean("draw.target-highlight", true); // This is required to update the cursors when ctrl/shift/alt is pressed try { Toolkit.getDefaultToolkit().addAWTEventListener(this, AWTEvent.KEY_EVENT_MASK); } catch (SecurityException ex) {} } @Override public void exitMode() { super.exitMode(); selectionManager.unregister(mv); mv.removeMouseListener(this); mv.removeMouseMotionListener(this); mv.setVirtualNodesEnabled(false); try { Toolkit.getDefaultToolkit().removeAWTEventListener(this); } catch (SecurityException ex) {} removeHighlighting(); } /** * works out which cursor should be displayed for most of SelectAction's * features. The only exception is the "move" cursor when actually dragging * primitives. * @param nearbyStuff primitives near the cursor * @return the cursor that should be displayed */ private Cursor getCursor(Collection nearbyStuff) { String c = "rect"; switch(mode) { case move: if(virtualManager.hasVirtualNode()) { c = "virtual_node"; break; } final Iterator it = nearbyStuff.iterator(); final OsmPrimitive osm = it.hasNext() ? it.next() : null; if(dragInProgress()) { // only consider merge if ctrl is pressed and there are nodes in // the selection that could be merged if(!ctrl || getCurrentDataSet().getSelectedNodes().isEmpty()) { c = "move"; break; } // only show merge to node cursor if nearby node and that node is currently // not being dragged final boolean hasTarget = osm != null && osm instanceof Node && !osm.isSelected(); c = hasTarget ? "merge_to_node" : "merge"; break; } c = (osm instanceof Node) ? "node" : c; c = (osm instanceof Way) ? "way" : c; if(shift) { c += "_add"; } else if(ctrl) { c += osm == null || osm.isSelected() ? "_rm" : "_add"; } break; case rotate: c = "rotate"; break; case scale: c = "scale"; break; case select: if (lassoMode) { c = "lasso"; } else { c = "rect" + (shift ? "_add" : (ctrl ? "_rm" : "")); } break; } return SelectActionCursor.valueOf(c).cursor(); } /** * Removes all existing highlights. * @return true if a repaint is required */ private boolean removeHighlighting() { boolean needsRepaint = false; DataSet ds = getCurrentDataSet(); if(ds != null && !ds.getHighlightedVirtualNodes().isEmpty()) { needsRepaint = true; ds.clearHighlightedVirtualNodes(); } if(oldHighlights.isEmpty()) return needsRepaint; for(OsmPrimitive prim : oldHighlights) { prim.setHighlighted(false); } oldHighlights = new HashSet(); return true; } private boolean repaintIfRequired(HashSet newHighlights) { if(!drawTargetHighlight) return false; boolean needsRepaint = false; for(OsmPrimitive x : newHighlights) { if(oldHighlights.contains(x)) { continue; } needsRepaint = true; x.setHighlighted(true); } oldHighlights.removeAll(newHighlights); for(OsmPrimitive x : oldHighlights) { x.setHighlighted(false); needsRepaint = true; } oldHighlights = newHighlights; return needsRepaint; } /** * handles adding highlights and updating the cursor for the given mouse event. * Please note that the highlighting for merging while moving is handled via mouseDragged. * @param MouseEvent which should be used as base for the feedback * @return true if repaint is required */ private boolean giveUserFeedback(MouseEvent e) { return giveUserFeedback(e, e.getModifiers()); } /** * handles adding highlights and updating the cursor for the given mouse event. * Please note that the highlighting for merging while moving is handled via mouseDragged. * @param MouseEvent which should be used as base for the feedback * @param define custom keyboard modifiers if the ones from MouseEvent are outdated or similar * @return true if repaint is required */ private boolean giveUserFeedback(MouseEvent e, int modifiers) { Collection c = MapView.asColl( mv.getNearestNodeOrWay(e.getPoint(), OsmPrimitive.isSelectablePredicate, true)); updateKeyModifiers(modifiers); determineMapMode(!c.isEmpty()); HashSet newHighlights = new HashSet(); virtualManager.clear(); if(mode == Mode.move && virtualManager.setupVirtual(e.getPoint())) { DataSet ds = getCurrentDataSet(); if (ds != null && drawTargetHighlight) { ds.setHighlightedVirtualNodes(virtualManager.virtualWays); } mv.setNewCursor(SelectActionCursor.virtual_node.cursor(), this); // don't highlight anything else if a virtual node will be return repaintIfRequired(newHighlights); } mv.setNewCursor(getCursor(c), this); // return early if there can't be any highlights if(!drawTargetHighlight || mode != Mode.move || c.isEmpty()) return repaintIfRequired(newHighlights); // CTRL toggles selection, but if while dragging CTRL means merge final boolean isToggleMode = ctrl && !dragInProgress(); for(OsmPrimitive x : c) { // only highlight primitives that will change the selection // when clicked. I.e. don't highlight selected elements unless // we are in toggle mode. if(isToggleMode || !x.isSelected()) { newHighlights.add(x); } } return repaintIfRequired(newHighlights); } /** * This is called whenever the keyboard modifier status changes */ public void eventDispatched(AWTEvent e) { if(oldEvent == null) return; // We don't have a mouse event, so we pass the old mouse event but the // new modifiers. if(giveUserFeedback(oldEvent, ((InputEvent) e).getModifiers())) { mv.repaint(); } } /** * If the left mouse button is pressed, move all currently selected * objects (if one of them is under the mouse) or the current one under the * mouse (which will become selected). */ @Override public void mouseDragged(MouseEvent e) { if (!mv.isActiveLayerVisible()) return; // Swing sends random mouseDragged events when closing dialogs by double-clicking their top-left icon on Windows // Ignore such false events to prevent issues like #7078 if (mouseDownButton == MouseEvent.BUTTON1 && mouseReleaseTime > mouseDownTime) return; cancelDrawMode = true; if (mode == Mode.select) return; // do not count anything as a move if it lasts less than 100 milliseconds. if ((mode == Mode.move) && (System.currentTimeMillis() - mouseDownTime < initialMoveDelay)) return; if (mode != Mode.rotate && mode != Mode.scale) // button is pressed in rotate mode { if ((e.getModifiersEx() & MouseEvent.BUTTON1_DOWN_MASK) == 0) return; } if (mode == Mode.move) { // If ctrl is pressed we are in merge mode. Look for a nearby node, // highlight it and adjust the cursor accordingly. final boolean canMerge = ctrl && !getCurrentDataSet().getSelectedNodes().isEmpty(); final OsmPrimitive p = canMerge ? (OsmPrimitive)findNodeToMergeTo(e.getPoint()) : null; boolean needsRepaint = removeHighlighting(); if(p != null) { p.setHighlighted(true); oldHighlights.add(p); needsRepaint = true; } mv.setNewCursor(getCursor(MapView.asColl(p)), this); // also update the stored mouse event, so we can display the correct cursor // when dragging a node onto another one and then press CTRL to merge oldEvent = e; if(needsRepaint) { mv.repaint(); } } if (startingDraggingPos == null) { startingDraggingPos = new Point(e.getX(), e.getY()); } if( lastMousePos == null ) { lastMousePos = e.getPoint(); return; } if (!initialMoveThresholdExceeded) { int dxp = lastMousePos.x - e.getX(); int dyp = lastMousePos.y - e.getY(); int dp = (int) Math.sqrt(dxp * dxp + dyp * dyp); if (dp < initialMoveThreshold) return; initialMoveThresholdExceeded = true; } EastNorth currentEN = mv.getEastNorth(e.getX(), e.getY()); EastNorth lastEN = mv.getEastNorth(lastMousePos.x, lastMousePos.y); //EastNorth startEN = mv.getEastNorth(startingDraggingPos.x, startingDraggingPos.y); double dx = currentEN.east() - lastEN.east(); double dy = currentEN.north() - lastEN.north(); if (dx == 0 && dy == 0) return; if (virtualManager.virtualWays.size() > 0) { virtualManager.processVirtualNodeMovements(dx, dy); } else { if (!updateCommandWhileDragging(dx, dy, currentEN)) return; } mv.repaint(); if (mode != Mode.scale) { lastMousePos = e.getPoint(); } didMouseDrag = true; } @Override public void mouseMoved(MouseEvent e) { // Mac OSX simulates with ctrl + mouse 1 the second mouse button hence no dragging events get fired. if ((Main.platform instanceof PlatformHookOsx) && (mode == Mode.rotate || mode == Mode.scale)) { mouseDragged(e); return; } oldEvent = e; if(giveUserFeedback(e)) { mv.repaint(); } } @Override public void mouseExited(MouseEvent e) { if(removeHighlighting()) { mv.repaint(); } } /** * Look, whether any object is selected. If not, select the nearest node. * If there are no nodes in the dataset, do nothing. * * If the user did not press the left mouse button, do nothing. * * Also remember the starting position of the movement and change the mouse * cursor to movement. */ @Override public void mousePressed(MouseEvent e) { // return early if (!mv.isActiveLayerVisible() || !(Boolean) this.getValue("active") || (mouseDownButton = e.getButton()) != MouseEvent.BUTTON1) return; // left-button mouse click only is processed here // request focus in order to enable the expected keyboard shortcuts mv.requestFocus(); // update which modifiers are pressed (shift, alt, ctrl) updateKeyModifiers(e); // We don't want to change to draw tool if the user tries to (de)select // stuff but accidentally clicks in an empty area when selection is empty cancelDrawMode = (shift || ctrl); didMouseDrag = false; initialMoveThresholdExceeded = false; mouseDownTime = System.currentTimeMillis(); lastMousePos = e.getPoint(); // primitives under cursor are stored in c collection Collection c = MapView.asColl( mv.getNearestNodeOrWay(e.getPoint(), OsmPrimitive.isSelectablePredicate, true)); determineMapMode(!c.isEmpty()); switch(mode) { case rotate: case scale: if (getCurrentDataSet().getSelected().isEmpty()) { getCurrentDataSet().setSelected(c); } // Mode.select redraws when selectPrims is called // Mode.move redraws when mouseDragged is called // Mode.rotate redraws here // Mode.scale redraws here break; case move: if (!cancelDrawMode && c.iterator().next() instanceof Way) { virtualManager.setupVirtual(e.getPoint()); } selectPrims(cycleManager.cycleSetup(c, e.getPoint()), false, false); break; case select: default: selectionManager.register(mv, lassoMode); selectionManager.mousePressed(e); break; } giveUserFeedback(e); mv.repaint(); updateStatusLine(); } @Override public void mouseReleased(MouseEvent e) { if (!mv.isActiveLayerVisible()) return; startingDraggingPos = null; mouseReleaseTime = System.currentTimeMillis(); if (mode == Mode.select) { selectionManager.unregister(mv); // Select Draw Tool if no selection has been made if (getCurrentDataSet().getSelected().size() == 0 && !cancelDrawMode) { Main.map.selectDrawTool(true); return; } } if (mode == Mode.move && e.getButton() == MouseEvent.BUTTON1) { if (!didMouseDrag) { // only built in move mode virtualManager.clear(); // do nothing if the click was to short too be recognized as a drag, // but the release position is farther than 10px away from the press position if (lastMousePos == null || lastMousePos.distanceSq(e.getPoint()) < 100) { updateKeyModifiers(e); selectPrims(cycleManager.cyclePrims(), true, false); // If the user double-clicked a node, change to draw mode Collection c = getCurrentDataSet().getSelected(); if (e.getClickCount() >= 2 && c.size() == 1 && c.iterator().next() instanceof Node) { // We need to do it like this as otherwise drawAction will see a double // click and switch back to SelectMode Main.worker.execute(new Runnable() { public void run() { Main.map.selectDrawTool(true); } }); return; } } } else { confirmOrUndoMovement(e); } } mode = null; // simply remove any highlights if the middle click popup is active because // the highlights don't depend on the cursor position there. If something was // selected beforehand this would put us into move mode as well, which breaks // the cycling through primitives on top of each other (see #6739). if(e.getButton() == MouseEvent.BUTTON2) { removeHighlighting(); } else { giveUserFeedback(e); } updateStatusLine(); } @Override public void selectionEnded(Rectangle r, MouseEvent e) { updateKeyModifiers(e); mv.repaint(); selectPrims(selectionManager.getSelectedObjects(alt), true, true); } /** * sets the mapmode according to key modifiers and if there are any * selectables nearby. Everything has to be pre-determined for this * function; its main purpose is to centralize what the modifiers do. * @param hasSelectionNearby */ private void determineMapMode(boolean hasSelectionNearby) { if (shift && ctrl) { mode = Mode.rotate; } else if (alt && ctrl) { mode = Mode.scale; } else if (hasSelectionNearby || dragInProgress()) { mode = Mode.move; } else { mode = Mode.select; } } /** returns true whenever elements have been grabbed and moved (i.e. the initial * thresholds have been exceeded) and is still in progress (i.e. mouse button * still pressed) */ final private boolean dragInProgress() { return didMouseDrag && startingDraggingPos != null; } /** * Create or update data modfication command whle dragging mouse - implementation of * continuous moving, scaling and rotation * @param dx, @param dy - mouse displacement * @param currentEN - * @return */ private boolean updateCommandWhileDragging(double dx, double dy, EastNorth currentEN) { // Currently we support only transformations which do not affect relations. // So don't add them in the first place to make handling easier Collection selection = getCurrentDataSet().getSelectedNodesAndWays(); Collection affectedNodes = AllNodesVisitor.getAllNodes(selection); // for these transformations, having only one node makes no sense - quit silently if (affectedNodes.size() < 2 && (mode == Mode.rotate || mode == Mode.scale)) { return false; } Command c = !Main.main.undoRedo.commands.isEmpty() ? Main.main.undoRedo.commands.getLast() : null; if (c instanceof SequenceCommand) { c = ((SequenceCommand) c).getLastCommand(); } if (mode == Mode.move) { // getCurrentDataSet().beginUpdate(); if (c instanceof MoveCommand && affectedNodes.equals(((MoveCommand) c).getParticipatingPrimitives())) { ((MoveCommand) c).moveAgain(dx, dy); } else { Main.main.undoRedo.add( c = new MoveCommand(selection, dx, dy)); } //getCurrentDataSet().endUpdate(); for (Node n : affectedNodes) { if (n.getCoor().isOutSideWorld()) { // Revert move ((MoveCommand) c).moveAgain(-dx, -dy); JOptionPane.showMessageDialog( Main.parent, tr("Cannot move objects outside of the world."), tr("Warning"), JOptionPane.WARNING_MESSAGE); mv.setNewCursor(cursor, this); return false; } } } else if (mode == Mode.rotate) { if (c instanceof RotateCommand && affectedNodes.equals(((RotateCommand) c).getTransformedNodes())) { ((RotateCommand) c).handleEvent(currentEN); } else { Main.main.undoRedo.add(new RotateCommand(selection, currentEN)); } } else if (mode == Mode.scale) { if (c instanceof ScaleCommand && affectedNodes.equals(((ScaleCommand) c).getTransformedNodes())) { ((ScaleCommand) c).handleEvent(currentEN); } else { Main.main.undoRedo.add(new ScaleCommand(selection, currentEN)); } } return true; } private void confirmOrUndoMovement(MouseEvent e) { int max = Main.pref.getInteger("warn.move.maxelements", 20), limit = max; for (OsmPrimitive osm : getCurrentDataSet().getSelected()) { if (osm instanceof Way) { limit -= ((Way) osm).getNodes().size(); } if ((limit -= 1) < 0) { break; } } if (limit < 0) { ExtendedDialog ed = new ExtendedDialog( Main.parent, tr("Move elements"), new String[]{tr("Move them"), tr("Undo move")}); ed.setButtonIcons(new String[]{"reorder.png", "cancel.png"}); ed.setContent(tr("You moved more than {0} elements. " + "Moving a large number of elements is often an error.\n" + "Really move them?", max)); ed.setCancelButton(2); ed.toggleEnable("movedManyElements"); ed.showDialog(); if (ed.getValue() != 1) { Main.main.undoRedo.undo(); } } else { // if small number of elements were moved, updateKeyModifiers(e); if (ctrl) mergePrims(e.getPoint()); } getCurrentDataSet().fireSelectionChanged(); } /** Merges the selected nodes to the one closest to the given mouse position iff the control * key is pressed. If there is no such node, no action will be done and no error will be * reported. If there is, it will execute the merge and add it to the undo buffer. */ final private void mergePrims(Point p) { Collection selNodes = getCurrentDataSet().getSelectedNodes(); if (selNodes.isEmpty()) return; Node target = findNodeToMergeTo(p); if (target == null) return; Collection nodesToMerge = new LinkedList(selNodes); nodesToMerge.add(target); MergeNodesAction.doMergeNodes(Main.main.getEditLayer(), nodesToMerge, target); } /** tries to find a node to merge to when in move-merge mode for the current mouse * position. Either returns the node or null, if no suitable one is nearby. */ final private Node findNodeToMergeTo(Point p) { Collection target = mv.getNearestNodes(p, getCurrentDataSet().getSelectedNodes(), OsmPrimitive.isSelectablePredicate); return target.isEmpty() ? null : target.iterator().next(); } private void selectPrims(Collection prims, boolean released, boolean area) { System.out.println("selectPrims:" +prims); DataSet ds = getCurrentDataSet(); // not allowed together: do not change dataset selection, return early // Virtual Ways: if non-empty the cursor is above a virtual node. So don't highlight // anything if about to drag the virtual node (i.e. !released) but continue if the // cursor is only released above a virtual node by accident (i.e. released). See #7018 if ((shift && ctrl) || (ctrl && !released) || (!virtualManager.virtualWays.isEmpty() && !released)) return; if (!released) { // Don't replace the selection if the user clicked on a // selected object (it breaks moving of selected groups). // Do it later, on mouse release. shift |= getCurrentDataSet().getSelected().containsAll(prims); } if (ctrl) { // Ctrl on an item toggles its selection status, // but Ctrl on an *area* just clears those items // out of the selection. if (area) { ds.clearSelection(prims); } else { ds.toggleSelected(prims); } } else if (shift) { // add prims to an existing selection ds.addSelected(prims); } else { // clear selection, then select the prims clicked ds.setSelected(prims); } } @Override public String getModeHelpText() { if (mode == Mode.select) return tr("Release the mouse button to select the objects in the rectangle."); else if (mode == Mode.move) { final boolean canMerge = getCurrentDataSet()!=null && !getCurrentDataSet().getSelectedNodes().isEmpty(); final String mergeHelp = canMerge ? (" " + tr("Ctrl to merge with nearest node.")) : ""; return tr("Release the mouse button to stop moving.") + mergeHelp; } else if (mode == Mode.rotate) return tr("Release the mouse button to stop rotating."); else if (mode == Mode.scale) return tr("Release the mouse button to stop scaling."); else return tr("Move objects by dragging; Shift to add to selection (Ctrl to toggle); Shift-Ctrl to rotate selected; Alt-Ctrl to scale selected; or change selection"); } @Override public boolean layerIsSupported(Layer l) { return l instanceof OsmDataLayer; } public void setLassoMode(boolean lassoMode) { this.selectionManager.setLassoMode(lassoMode); this.lassoMode = lassoMode; } CycleManager cycleManager = new CycleManager(); VirtualManager virtualManager = new VirtualManager(); private class CycleManager { private Collection cycleList = Collections.emptyList(); private boolean cyclePrims = false; private OsmPrimitive cycleStart = null; /** * * @param osm nearest primitive found by simple method * @param e * @return */ private Collection cycleSetup(Collection single, Point p) { OsmPrimitive osm = null; if (single != null && !single.isEmpty()) { osm = single.iterator().next(); // Point p = e.getPoint(); boolean waitForMouseUp = Main.pref.getBoolean("mappaint.select.waits-for-mouse-up", false); // updateKeyModifiers(e); // cycleSetup called only after updateModifiers ! alt = alt || Main.pref.getBoolean("selectaction.cycles.multiple.matches", false); if (!alt) { cycleList = MapView.asColl(osm); if (waitForMouseUp) { // prefer a selected nearest node or way, if possible osm = mv.getNearestNodeOrWay(p, OsmPrimitive.isSelectablePredicate, true); } } else { cycleList = mv.getAllNearest(p, OsmPrimitive.isSelectablePredicate); if (cycleList.size() > 1) { cyclePrims = false; OsmPrimitive old = osm; for (OsmPrimitive o : cycleList) { if (o.isSelected()) { cyclePrims = true; osm = o; break; } } // special case: for cycle groups of 2, we can toggle to the // true nearest primitive on mousePressed right away if (cycleList.size() == 2 && !waitForMouseUp) { if (!(osm.equals(old) || osm.isNew() || ctrl)) { cyclePrims = false; osm = old; } // else defer toggling to mouseRelease time in those cases: /* * osm == old -- the true nearest node is the selected one * osm is a new node -- do not break unglue ways in ALT mode * ctrl is pressed -- ctrl generally works on mouseReleased */ } } } } return MapView.asColl(osm); } /** * Modifies current selection state and returns the next element in a * selection cycle given by prims. * @param prims the primitives that form the selection cycle * @param mouse event * @return the next element of cycle list prims. */ private Collection cyclePrims() { Collection prims = cycleList; OsmPrimitive nxt = null; if (prims.size() > 1) { // updateKeyModifiers(e); // already called before ! DataSet ds = getCurrentDataSet(); OsmPrimitive first = prims.iterator().next(), foundInDS = null; nxt = first; for (Iterator i = prims.iterator(); i.hasNext();) { if (cyclePrims && shift) { if (!(nxt = i.next()).isSelected()) { break; // take first primitive in prims list not in sel } } else { if ((nxt = i.next()).isSelected()) { foundInDS = nxt; if (cyclePrims || ctrl) { ds.clearSelection(foundInDS); nxt = i.hasNext() ? i.next() : first; } break; // take next primitive in prims list } } } if (ctrl) { // a member of prims was found in the current dataset selection if (foundInDS != null) { // mouse was moved to a different selection group w/ a previous sel if (!prims.contains(cycleStart)) { ds.clearSelection(prims); cycleStart = foundInDS; } else if (cycleStart.equals(nxt)) { // loop detected, insert deselect step ds.addSelected(nxt); } } else { // setup for iterating a sel group again or a new, different one.. nxt = (prims.contains(cycleStart)) ? cycleStart : first; cycleStart = nxt; } } else { cycleStart = null; } } // pass on prims, if it had less than 2 elements return (nxt != null) ? MapView.asColl(nxt) : prims; } } private class VirtualManager { private Node virtualNode = null; private Collection virtualWays = new LinkedList(); /** * Calculate a virtual node if there is enough visual space to draw a crosshair * node and the middle of a way segment is clicked. If the user drags the * crosshair node, it will be added to all ways in virtualWays. * * @param e contains the point clicked * @return whether virtualNode and virtualWays were setup. */ private boolean setupVirtual(Point p) { if (Main.pref.getInteger("mappaint.node.virtual-size", 8) > 0) { int virtualSnapDistSq = Main.pref.getInteger("mappaint.node.virtual-snap-distance", 8); int virtualSpace = Main.pref.getInteger("mappaint.node.virtual-space", 70); virtualSnapDistSq *= virtualSnapDistSq; Collection selVirtualWays = new LinkedList(); Pair vnp = null, wnp = new Pair(null, null); Way w = null; for (WaySegment ws : mv.getNearestWaySegments(p, OsmPrimitive.isSelectablePredicate)) { w = ws.way; Point2D p1 = mv.getPoint2D(wnp.a = w.getNode(ws.lowerIndex)); Point2D p2 = mv.getPoint2D(wnp.b = w.getNode(ws.lowerIndex + 1)); if (WireframeMapRenderer.isLargeSegment(p1, p2, virtualSpace)) { Point2D pc = new Point2D.Double((p1.getX() + p2.getX()) / 2, (p1.getY() + p2.getY()) / 2); if (p.distanceSq(pc) < virtualSnapDistSq) { // Check that only segments on top of each other get added to the // virtual ways list. Otherwise ways that coincidentally have their // virtual node at the same spot will be joined which is likely unwanted Pair.sort(wnp); if (vnp == null) { vnp = new Pair(wnp.a, wnp.b); virtualNode = new Node(mv.getLatLon(pc.getX(), pc.getY())); } if (vnp.equals(wnp)) { (w.isSelected() ? selVirtualWays : virtualWays).add(ws); } } } } if (!selVirtualWays.isEmpty()) { virtualWays = selVirtualWays; } } return !virtualWays.isEmpty(); } private void processVirtualNodeMovements(double dx, double dy) { Collection virtualCmds = new LinkedList(); virtualCmds.add(new AddCommand(virtualNode)); for (WaySegment virtualWay : virtualWays) { Way w = virtualWay.way; Way wnew = new Way(w); wnew.addNode(virtualWay.lowerIndex + 1, virtualNode); virtualCmds.add(new ChangeCommand(w, wnew)); } virtualCmds.add(new MoveCommand(virtualNode, dx, dy)); String text = trn("Add and move a virtual new node to way", "Add and move a virtual new node to {0} ways", virtualWays.size(), virtualWays.size()); Main.main.undoRedo.add(new SequenceCommand(text, virtualCmds)); getCurrentDataSet().setSelected(Collections.singleton((OsmPrimitive) virtualNode)); clear(); } private void clear() { virtualWays.clear(); virtualNode = null; } private boolean hasVirtualNode() { return virtualNode != null; } } }