001// License: GPL. For details, see LICENSE file.
002package org.openstreetmap.josm.gui.dialogs;
003
004import static org.openstreetmap.josm.tools.I18n.tr;
005import static org.openstreetmap.josm.tools.I18n.trn;
006
007import java.awt.Component;
008import java.awt.GraphicsEnvironment;
009import java.awt.Rectangle;
010import java.awt.datatransfer.Transferable;
011import java.awt.event.ActionEvent;
012import java.awt.event.ActionListener;
013import java.awt.event.KeyEvent;
014import java.awt.event.MouseEvent;
015import java.util.ArrayList;
016import java.util.Arrays;
017import java.util.Collection;
018import java.util.Collections;
019import java.util.HashSet;
020import java.util.Iterator;
021import java.util.LinkedList;
022import java.util.List;
023import java.util.Set;
024
025import javax.swing.AbstractAction;
026import javax.swing.AbstractListModel;
027import javax.swing.DefaultListSelectionModel;
028import javax.swing.JComponent;
029import javax.swing.JList;
030import javax.swing.JMenuItem;
031import javax.swing.JPopupMenu;
032import javax.swing.ListSelectionModel;
033import javax.swing.TransferHandler;
034import javax.swing.event.ListDataEvent;
035import javax.swing.event.ListDataListener;
036import javax.swing.event.ListSelectionEvent;
037import javax.swing.event.ListSelectionListener;
038
039import org.openstreetmap.josm.Main;
040import org.openstreetmap.josm.actions.AbstractSelectAction;
041import org.openstreetmap.josm.actions.AutoScaleAction;
042import org.openstreetmap.josm.actions.relation.DownloadSelectedIncompleteMembersAction;
043import org.openstreetmap.josm.actions.relation.EditRelationAction;
044import org.openstreetmap.josm.actions.relation.SelectInRelationListAction;
045import org.openstreetmap.josm.actions.search.SearchAction.SearchSetting;
046import org.openstreetmap.josm.data.SelectionChangedListener;
047import org.openstreetmap.josm.data.coor.LatLon;
048import org.openstreetmap.josm.data.osm.DataSet;
049import org.openstreetmap.josm.data.osm.Node;
050import org.openstreetmap.josm.data.osm.OsmPrimitive;
051import org.openstreetmap.josm.data.osm.OsmPrimitiveComparator;
052import org.openstreetmap.josm.data.osm.Relation;
053import org.openstreetmap.josm.data.osm.Way;
054import org.openstreetmap.josm.data.osm.event.AbstractDatasetChangedEvent;
055import org.openstreetmap.josm.data.osm.event.DataChangedEvent;
056import org.openstreetmap.josm.data.osm.event.DataSetListener;
057import org.openstreetmap.josm.data.osm.event.DatasetEventManager;
058import org.openstreetmap.josm.data.osm.event.DatasetEventManager.FireMode;
059import org.openstreetmap.josm.data.osm.event.NodeMovedEvent;
060import org.openstreetmap.josm.data.osm.event.PrimitivesAddedEvent;
061import org.openstreetmap.josm.data.osm.event.PrimitivesRemovedEvent;
062import org.openstreetmap.josm.data.osm.event.RelationMembersChangedEvent;
063import org.openstreetmap.josm.data.osm.event.SelectionEventManager;
064import org.openstreetmap.josm.data.osm.event.TagsChangedEvent;
065import org.openstreetmap.josm.data.osm.event.WayNodesChangedEvent;
066import org.openstreetmap.josm.data.osm.visitor.BoundingXYVisitor;
067import org.openstreetmap.josm.gui.DefaultNameFormatter;
068import org.openstreetmap.josm.gui.OsmPrimitivRenderer;
069import org.openstreetmap.josm.gui.PopupMenuHandler;
070import org.openstreetmap.josm.gui.SideButton;
071import org.openstreetmap.josm.gui.datatransfer.PrimitiveTransferable;
072import org.openstreetmap.josm.gui.datatransfer.data.PrimitiveTransferData;
073import org.openstreetmap.josm.gui.history.HistoryBrowserDialogManager;
074import org.openstreetmap.josm.gui.layer.MainLayerManager.ActiveLayerChangeEvent;
075import org.openstreetmap.josm.gui.layer.MainLayerManager.ActiveLayerChangeListener;
076import org.openstreetmap.josm.gui.layer.OsmDataLayer;
077import org.openstreetmap.josm.gui.util.GuiHelper;
078import org.openstreetmap.josm.gui.util.HighlightHelper;
079import org.openstreetmap.josm.gui.widgets.ListPopupMenu;
080import org.openstreetmap.josm.gui.widgets.PopupMenuLauncher;
081import org.openstreetmap.josm.tools.ImageProvider;
082import org.openstreetmap.josm.tools.InputMapUtils;
083import org.openstreetmap.josm.tools.Shortcut;
084import org.openstreetmap.josm.tools.SubclassFilteredCollection;
085import org.openstreetmap.josm.tools.Utils;
086
087/**
088 * A small tool dialog for displaying the current selection.
089 * @since 8
090 */
091public class SelectionListDialog extends ToggleDialog {
092    private JList<OsmPrimitive> lstPrimitives;
093    private final DefaultListSelectionModel selectionModel = new DefaultListSelectionModel();
094    private final SelectionListModel model = new SelectionListModel(selectionModel);
095
096    private final SelectAction actSelect = new SelectAction();
097    private final SearchAction actSearch = new SearchAction();
098    private final ShowHistoryAction actShowHistory = new ShowHistoryAction();
099    private final ZoomToJOSMSelectionAction actZoomToJOSMSelection = new ZoomToJOSMSelectionAction();
100    private final ZoomToListSelection actZoomToListSelection = new ZoomToListSelection();
101    private final SelectInRelationListAction actSetRelationSelection = new SelectInRelationListAction();
102    private final EditRelationAction actEditRelationSelection = new EditRelationAction();
103    private final DownloadSelectedIncompleteMembersAction actDownloadSelIncompleteMembers = new DownloadSelectedIncompleteMembersAction();
104
105    /** the popup menu and its handler */
106    private final ListPopupMenu popupMenu;
107    private final transient PopupMenuHandler popupMenuHandler;
108
109    /**
110     * Builds the content panel for this dialog
111     */
112    protected void buildContentPanel() {
113        lstPrimitives = new JList<>(model);
114        lstPrimitives.setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);
115        lstPrimitives.setSelectionModel(selectionModel);
116        lstPrimitives.setCellRenderer(new OsmPrimitivRenderer());
117        lstPrimitives.setTransferHandler(new SelectionTransferHandler());
118        if (!GraphicsEnvironment.isHeadless()) {
119            lstPrimitives.setDragEnabled(true);
120        }
121
122        lstPrimitives.getSelectionModel().addListSelectionListener(actSelect);
123        lstPrimitives.getSelectionModel().addListSelectionListener(actShowHistory);
124
125        // the select action
126        final SideButton selectButton = new SideButton(actSelect);
127        selectButton.createArrow(e -> SelectionHistoryPopup.launch(selectButton, model.getSelectionHistory()));
128
129        // the search button
130        final SideButton searchButton = new SideButton(actSearch);
131        searchButton.createArrow(e -> SearchPopupMenu.launch(searchButton));
132
133        createLayout(lstPrimitives, true, Arrays.asList(new SideButton[] {
134            selectButton, searchButton, new SideButton(actShowHistory)
135        }));
136    }
137
138    /**
139     * Constructs a new {@code SelectionListDialog}.
140     */
141    public SelectionListDialog() {
142        super(tr("Selection"), "selectionlist", tr("Open a selection list window."),
143                Shortcut.registerShortcut("subwindow:selection", tr("Toggle: {0}",
144                tr("Current Selection")), KeyEvent.VK_T, Shortcut.ALT_SHIFT),
145                150, // default height
146                true // default is "show dialog"
147        );
148
149        buildContentPanel();
150        model.addListDataListener(new TitleUpdater());
151        model.addListDataListener(actZoomToJOSMSelection);
152
153        popupMenu = new ListPopupMenu(lstPrimitives);
154        popupMenuHandler = setupPopupMenuHandler();
155
156        lstPrimitives.addListSelectionListener(e -> {
157            actZoomToListSelection.valueChanged(e);
158            popupMenuHandler.setPrimitives(model.getSelected());
159        });
160
161        lstPrimitives.addMouseListener(new MouseEventHandler());
162
163        InputMapUtils.addEnterAction(lstPrimitives, actZoomToListSelection);
164    }
165
166    @Override
167    public void showNotify() {
168        SelectionEventManager.getInstance().addSelectionListener(actShowHistory, FireMode.IN_EDT_CONSOLIDATED);
169        SelectionEventManager.getInstance().addSelectionListener(model, FireMode.IN_EDT_CONSOLIDATED);
170        DatasetEventManager.getInstance().addDatasetListener(model, FireMode.IN_EDT);
171        Main.getLayerManager().addActiveLayerChangeListener(actSearch);
172        // editLayerChanged also gets the selection history of the level. Listener calls setJOSMSelection when fired.
173        Main.getLayerManager().addAndFireActiveLayerChangeListener(model);
174        actSearch.updateEnabledState();
175    }
176
177    @Override
178    public void hideNotify() {
179        Main.getLayerManager().removeActiveLayerChangeListener(actSearch);
180        Main.getLayerManager().removeActiveLayerChangeListener(model);
181        SelectionEventManager.getInstance().removeSelectionListener(actShowHistory);
182        SelectionEventManager.getInstance().removeSelectionListener(model);
183        DatasetEventManager.getInstance().removeDatasetListener(model);
184    }
185
186    /**
187     * Responds to double clicks on the list of selected objects and launches the popup menu
188     */
189    class MouseEventHandler extends PopupMenuLauncher {
190        private final HighlightHelper helper = new HighlightHelper();
191        private final boolean highlightEnabled = Main.pref.getBoolean("draw.target-highlight", true);
192
193        MouseEventHandler() {
194            super(popupMenu);
195        }
196
197        @Override
198        public void mouseClicked(MouseEvent e) {
199            int idx = lstPrimitives.locationToIndex(e.getPoint());
200            if (idx < 0) return;
201            if (isDoubleClick(e)) {
202                OsmDataLayer layer = Main.getLayerManager().getEditLayer();
203                if (layer == null) return;
204                OsmPrimitive osm = model.getElementAt(idx);
205                Collection<OsmPrimitive> sel = layer.data.getSelected();
206                if (sel.size() != 1 || !sel.iterator().next().equals(osm)) {
207                    // Select primitive if it's not the whole current selection
208                    layer.data.setSelected(Collections.singleton(osm));
209                } else if (osm instanceof Relation) {
210                    // else open relation editor if applicable
211                    actEditRelationSelection.actionPerformed(null);
212                }
213            } else if (highlightEnabled && Main.isDisplayingMapView()) {
214                if (helper.highlightOnly(model.getElementAt(idx))) {
215                    Main.map.mapView.repaint();
216                }
217            }
218        }
219
220        @Override
221        public void mouseExited(MouseEvent me) {
222            if (highlightEnabled) helper.clear();
223            super.mouseExited(me);
224        }
225    }
226
227    private PopupMenuHandler setupPopupMenuHandler() {
228        PopupMenuHandler handler = new PopupMenuHandler(popupMenu);
229        handler.addAction(actZoomToJOSMSelection);
230        handler.addAction(actZoomToListSelection);
231        handler.addSeparator();
232        handler.addAction(actSetRelationSelection);
233        handler.addAction(actEditRelationSelection);
234        handler.addSeparator();
235        handler.addAction(actDownloadSelIncompleteMembers);
236        return handler;
237    }
238
239    /**
240     * Replies the popup menu handler.
241     * @return The popup menu handler
242     */
243    public PopupMenuHandler getPopupMenuHandler() {
244        return popupMenuHandler;
245    }
246
247    /**
248     * Replies the selected OSM primitives.
249     * @return The selected OSM primitives
250     */
251    public Collection<OsmPrimitive> getSelectedPrimitives() {
252        return model.getSelected();
253    }
254
255    /**
256     * Updates the dialog title with a summary of the current JOSM selection
257     */
258    class TitleUpdater implements ListDataListener {
259        protected void updateTitle() {
260            setTitle(model.getJOSMSelectionSummary());
261        }
262
263        @Override
264        public void contentsChanged(ListDataEvent e) {
265            updateTitle();
266        }
267
268        @Override
269        public void intervalAdded(ListDataEvent e) {
270            updateTitle();
271        }
272
273        @Override
274        public void intervalRemoved(ListDataEvent e) {
275            updateTitle();
276        }
277    }
278
279    /**
280     * Launches the search dialog
281     */
282    static class SearchAction extends AbstractAction implements ActiveLayerChangeListener {
283        /**
284         * Constructs a new {@code SearchAction}.
285         */
286        SearchAction() {
287            putValue(NAME, tr("Search"));
288            putValue(SHORT_DESCRIPTION, tr("Search for objects"));
289            new ImageProvider("dialogs", "search").getResource().attachImageIcon(this, true);
290            updateEnabledState();
291        }
292
293        @Override
294        public void actionPerformed(ActionEvent e) {
295            if (!isEnabled()) return;
296            org.openstreetmap.josm.actions.search.SearchAction.search();
297        }
298
299        protected void updateEnabledState() {
300            setEnabled(Main.getLayerManager().getEditLayer() != null);
301        }
302
303        @Override
304        public void activeOrEditLayerChanged(ActiveLayerChangeEvent e) {
305            updateEnabledState();
306        }
307    }
308
309    /**
310     * Sets the current JOSM selection to the OSM primitives selected in the list
311     * of this dialog
312     */
313    class SelectAction extends AbstractSelectAction implements ListSelectionListener {
314        /**
315         * Constructs a new {@code SelectAction}.
316         */
317        SelectAction() {
318            updateEnabledState();
319        }
320
321        @Override
322        public void actionPerformed(ActionEvent e) {
323            Collection<OsmPrimitive> sel = model.getSelected();
324            if (sel.isEmpty()) return;
325            OsmDataLayer editLayer = Main.getLayerManager().getEditLayer();
326            if (editLayer == null) return;
327            editLayer.data.setSelected(sel);
328            model.selectionModel.setSelectionInterval(0, sel.size()-1);
329        }
330
331        protected void updateEnabledState() {
332            setEnabled(!model.isSelectionEmpty());
333        }
334
335        @Override
336        public void valueChanged(ListSelectionEvent e) {
337            updateEnabledState();
338        }
339    }
340
341    /**
342     * The action for showing history information of the current history item.
343     */
344    class ShowHistoryAction extends AbstractAction implements ListSelectionListener, SelectionChangedListener {
345        /**
346         * Constructs a new {@code ShowHistoryAction}.
347         */
348        ShowHistoryAction() {
349            putValue(NAME, tr("History"));
350            putValue(SHORT_DESCRIPTION, tr("Display the history of the selected objects."));
351            new ImageProvider("dialogs", "history").getResource().attachImageIcon(this, true);
352            updateEnabledState(model.getSize());
353        }
354
355        @Override
356        public void actionPerformed(ActionEvent e) {
357            Collection<OsmPrimitive> sel = model.getSelected();
358            if (sel.isEmpty() && model.getSize() != 1) {
359                return;
360            } else if (sel.isEmpty()) {
361                sel = Collections.singleton(model.getElementAt(0));
362            }
363            HistoryBrowserDialogManager.getInstance().showHistory(sel);
364        }
365
366        protected void updateEnabledState(int osmSelectionSize) {
367            // See #10830 - allow to click on history button is a single object is selected, even if not selected again in the list
368            setEnabled(!model.isSelectionEmpty() || osmSelectionSize == 1);
369        }
370
371        @Override
372        public void valueChanged(ListSelectionEvent e) {
373            updateEnabledState(model.getSize());
374        }
375
376        @Override
377        public void selectionChanged(Collection<? extends OsmPrimitive> newSelection) {
378            updateEnabledState(newSelection.size());
379        }
380    }
381
382    /**
383     * The action for zooming to the primitives in the current JOSM selection
384     *
385     */
386    class ZoomToJOSMSelectionAction extends AbstractAction implements ListDataListener {
387
388        ZoomToJOSMSelectionAction() {
389            putValue(NAME, tr("Zoom to selection"));
390            putValue(SHORT_DESCRIPTION, tr("Zoom to selection"));
391            new ImageProvider("dialogs/autoscale", "selection").getResource().attachImageIcon(this, true);
392            updateEnabledState();
393        }
394
395        @Override
396        public void actionPerformed(ActionEvent e) {
397            AutoScaleAction.autoScale("selection");
398        }
399
400        public void updateEnabledState() {
401            setEnabled(model.getSize() > 0);
402        }
403
404        @Override
405        public void contentsChanged(ListDataEvent e) {
406            updateEnabledState();
407        }
408
409        @Override
410        public void intervalAdded(ListDataEvent e) {
411            updateEnabledState();
412        }
413
414        @Override
415        public void intervalRemoved(ListDataEvent e) {
416            updateEnabledState();
417        }
418    }
419
420    /**
421     * The action for zooming to the primitives which are currently selected in
422     * the list displaying the JOSM selection
423     *
424     */
425    class ZoomToListSelection extends AbstractAction implements ListSelectionListener {
426        /**
427         * Constructs a new {@code ZoomToListSelection}.
428         */
429        ZoomToListSelection() {
430            putValue(NAME, tr("Zoom to selected element(s)"));
431            putValue(SHORT_DESCRIPTION, tr("Zoom to selected element(s)"));
432            new ImageProvider("dialogs/autoscale", "selection").getResource().attachImageIcon(this, true);
433            updateEnabledState();
434        }
435
436        @Override
437        public void actionPerformed(ActionEvent e) {
438            BoundingXYVisitor box = new BoundingXYVisitor();
439            Collection<OsmPrimitive> sel = model.getSelected();
440            if (sel.isEmpty()) return;
441            box.computeBoundingBox(sel);
442            if (box.getBounds() == null)
443                return;
444            box.enlargeBoundingBox();
445            Main.map.mapView.zoomTo(box);
446        }
447
448        protected void updateEnabledState() {
449            setEnabled(!model.isSelectionEmpty());
450        }
451
452        @Override
453        public void valueChanged(ListSelectionEvent e) {
454            updateEnabledState();
455        }
456    }
457
458    /**
459     * The list model for the list of OSM primitives in the current JOSM selection.
460     *
461     * The model also maintains a history of the last {@link SelectionListModel#SELECTION_HISTORY_SIZE}
462     * JOSM selection.
463     *
464     */
465    private static class SelectionListModel extends AbstractListModel<OsmPrimitive>
466    implements ActiveLayerChangeListener, SelectionChangedListener, DataSetListener {
467
468        private static final int SELECTION_HISTORY_SIZE = 10;
469
470        // Variable to store history from currentDataSet()
471        private LinkedList<Collection<? extends OsmPrimitive>> history;
472        private final transient List<OsmPrimitive> selection = new ArrayList<>();
473        private final DefaultListSelectionModel selectionModel;
474
475        /**
476         * Constructor
477         * @param selectionModel the selection model used in the list
478         */
479        SelectionListModel(DefaultListSelectionModel selectionModel) {
480            this.selectionModel = selectionModel;
481        }
482
483        /**
484         * Replies a summary of the current JOSM selection
485         *
486         * @return a summary of the current JOSM selection
487         */
488        public synchronized String getJOSMSelectionSummary() {
489            if (selection.isEmpty()) return tr("Selection");
490            int numNodes = 0;
491            int numWays = 0;
492            int numRelations = 0;
493            for (OsmPrimitive p: selection) {
494                switch(p.getType()) {
495                case NODE: numNodes++; break;
496                case WAY: numWays++; break;
497                case RELATION: numRelations++; break;
498                default: throw new AssertionError();
499                }
500            }
501            return tr("Sel.: Rel.:{0} / Ways:{1} / Nodes:{2}", numRelations, numWays, numNodes);
502        }
503
504        /**
505         * Remembers a JOSM selection the history of JOSM selections
506         *
507         * @param selection the JOSM selection. Ignored if null or empty.
508         */
509        public void remember(Collection<? extends OsmPrimitive> selection) {
510            if (selection == null) return;
511            if (selection.isEmpty()) return;
512            if (history == null) return;
513            if (history.isEmpty()) {
514                history.add(selection);
515                return;
516            }
517            if (history.getFirst().equals(selection)) return;
518            history.addFirst(selection);
519            for (int i = 1; i < history.size(); ++i) {
520                if (history.get(i).equals(selection)) {
521                    history.remove(i);
522                    break;
523                }
524            }
525            int maxsize = Main.pref.getInteger("select.history-size", SELECTION_HISTORY_SIZE);
526            while (history.size() > maxsize) {
527                history.removeLast();
528            }
529        }
530
531        /**
532         * Replies the history of JOSM selections
533         *
534         * @return history of JOSM selections
535         */
536        public List<Collection<? extends OsmPrimitive>> getSelectionHistory() {
537            return history;
538        }
539
540        @Override
541        public synchronized OsmPrimitive getElementAt(int index) {
542            return selection.get(index);
543        }
544
545        @Override
546        public synchronized int getSize() {
547            return selection.size();
548        }
549
550        /**
551         * Determines if no OSM primitives are currently selected.
552         * @return {@code true} if no OSM primitives are currently selected
553         * @since 10383
554         */
555        public boolean isSelectionEmpty() {
556            return selectionModel.isSelectionEmpty();
557        }
558
559        /**
560         * Replies the collection of OSM primitives currently selected in the view of this model
561         *
562         * @return choosen elements in the view
563         */
564        public synchronized Collection<OsmPrimitive> getSelected() {
565            Set<OsmPrimitive> sel = new HashSet<>();
566            for (int i = 0; i < getSize(); i++) {
567                if (selectionModel.isSelectedIndex(i)) {
568                    sel.add(selection.get(i));
569                }
570            }
571            return sel;
572        }
573
574        /**
575         * Sets the OSM primitives to be selected in the view of this model
576         *
577         * @param sel the collection of primitives to select
578         */
579        public synchronized void setSelected(Collection<OsmPrimitive> sel) {
580            selectionModel.clearSelection();
581            if (sel == null) return;
582            for (OsmPrimitive p: sel) {
583                int i = selection.indexOf(p);
584                if (i >= 0) {
585                    selectionModel.addSelectionInterval(i, i);
586                }
587            }
588        }
589
590        @Override
591        protected void fireContentsChanged(Object source, int index0, int index1) {
592            Collection<OsmPrimitive> sel = getSelected();
593            super.fireContentsChanged(source, index0, index1);
594            setSelected(sel);
595        }
596
597        /**
598         * Sets the collection of currently selected OSM objects
599         *
600         * @param selection the collection of currently selected OSM objects
601         */
602        public void setJOSMSelection(final Collection<? extends OsmPrimitive> selection) {
603            synchronized (this) {
604                this.selection.clear();
605                if (selection != null) {
606                    this.selection.addAll(selection);
607                    sort();
608                }
609            }
610            GuiHelper.runInEDTAndWait(new Runnable() {
611                @Override public void run() {
612                    fireContentsChanged(this, 0, getSize());
613                    if (selection != null) {
614                        remember(selection);
615                        if (selection.size() == 2) {
616                            Iterator<? extends OsmPrimitive> it = selection.iterator();
617                            OsmPrimitive n1 = it.next();
618                            OsmPrimitive n2 = it.next();
619                            // show distance between two selected nodes with coordinates
620                            if (n1 instanceof Node && n2 instanceof Node) {
621                                LatLon c1 = ((Node) n1).getCoor();
622                                LatLon c2 = ((Node) n2).getCoor();
623                                if (c1 != null && c2 != null) {
624                                    Main.map.statusLine.setDist(c1.greatCircleDistance(c2));
625                                    return;
626                                }
627                            }
628                        }
629                        Main.map.statusLine.setDist(
630                                new SubclassFilteredCollection<OsmPrimitive, Way>(selection, Way.class::isInstance));
631                    }
632                }
633            });
634        }
635
636        /**
637         * Triggers a refresh of the view for all primitives in {@code toUpdate}
638         * which are currently displayed in the view
639         *
640         * @param toUpdate the collection of primitives to update
641         */
642        public synchronized void update(Collection<? extends OsmPrimitive> toUpdate) {
643            if (toUpdate == null) return;
644            if (toUpdate.isEmpty()) return;
645            Collection<OsmPrimitive> sel = getSelected();
646            for (OsmPrimitive p: toUpdate) {
647                int i = selection.indexOf(p);
648                if (i >= 0) {
649                    super.fireContentsChanged(this, i, i);
650                }
651            }
652            setSelected(sel);
653        }
654
655        /**
656         * Sorts the current elements in the selection
657         */
658        public synchronized void sort() {
659            if (selection.size() <= Main.pref.getInteger("selection.no_sort_above", 100_000)) {
660                boolean quick = selection.size() > Main.pref.getInteger("selection.fast_sort_above", 10_000);
661                selection.sort(OsmPrimitiveComparator.orderingWaysRelationsNodes().thenComparing(quick
662                        ? OsmPrimitiveComparator.comparingUniqueId()
663                        : OsmPrimitiveComparator.comparingNames()));
664            }
665        }
666
667        /* ------------------------------------------------------------------------ */
668        /* interface ActiveLayerChangeListener                                      */
669        /* ------------------------------------------------------------------------ */
670        @Override
671        public void activeOrEditLayerChanged(ActiveLayerChangeEvent e) {
672            DataSet newData = e.getSource().getEditDataSet();
673            if (newData == null) {
674                setJOSMSelection(null);
675                history = null;
676            } else {
677                history = newData.getSelectionHistory();
678                setJOSMSelection(newData.getAllSelected());
679            }
680        }
681
682        /* ------------------------------------------------------------------------ */
683        /* interface SelectionChangeListener                                        */
684        /* ------------------------------------------------------------------------ */
685        @Override
686        public void selectionChanged(Collection<? extends OsmPrimitive> newSelection) {
687            setJOSMSelection(newSelection);
688        }
689
690        /* ------------------------------------------------------------------------ */
691        /* interface DataSetListener                                                */
692        /* ------------------------------------------------------------------------ */
693        @Override
694        public void dataChanged(DataChangedEvent event) {
695            // refresh the whole list
696            fireContentsChanged(this, 0, getSize());
697        }
698
699        @Override
700        public void nodeMoved(NodeMovedEvent event) {
701            // may influence the display name of primitives, update the data
702            update(event.getPrimitives());
703        }
704
705        @Override
706        public void otherDatasetChange(AbstractDatasetChangedEvent event) {
707            // may influence the display name of primitives, update the data
708            update(event.getPrimitives());
709        }
710
711        @Override
712        public void relationMembersChanged(RelationMembersChangedEvent event) {
713            // may influence the display name of primitives, update the data
714            update(event.getPrimitives());
715        }
716
717        @Override
718        public void tagsChanged(TagsChangedEvent event) {
719            // may influence the display name of primitives, update the data
720            update(event.getPrimitives());
721        }
722
723        @Override
724        public void wayNodesChanged(WayNodesChangedEvent event) {
725            // may influence the display name of primitives, update the data
726            update(event.getPrimitives());
727        }
728
729        @Override
730        public void primitivesAdded(PrimitivesAddedEvent event) {
731            /* ignored - handled by SelectionChangeListener */
732        }
733
734        @Override
735        public void primitivesRemoved(PrimitivesRemovedEvent event) {
736            /* ignored - handled by SelectionChangeListener*/
737        }
738    }
739
740    /**
741     * A specialized {@link JMenuItem} for presenting one entry of the search history
742     *
743     * @author Jan Peter Stotz
744     */
745    protected static class SearchMenuItem extends JMenuItem implements ActionListener {
746        protected final transient SearchSetting s;
747
748        public SearchMenuItem(SearchSetting s) {
749            super(Utils.shortenString(s.toString(),
750                    org.openstreetmap.josm.actions.search.SearchAction.MAX_LENGTH_SEARCH_EXPRESSION_DISPLAY));
751            this.s = s;
752            addActionListener(this);
753        }
754
755        @Override
756        public void actionPerformed(ActionEvent e) {
757            org.openstreetmap.josm.actions.search.SearchAction.searchWithoutHistory(s);
758        }
759    }
760
761    /**
762     * The popup menu for the search history entries
763     *
764     */
765    protected static class SearchPopupMenu extends JPopupMenu {
766        public static void launch(Component parent) {
767            if (org.openstreetmap.josm.actions.search.SearchAction.getSearchHistory().isEmpty())
768                return;
769            JPopupMenu menu = new SearchPopupMenu();
770            Rectangle r = parent.getBounds();
771            menu.show(parent, r.x, r.y + r.height);
772        }
773
774        /**
775         * Constructs a new {@code SearchPopupMenu}.
776         */
777        public SearchPopupMenu() {
778            for (SearchSetting ss: org.openstreetmap.josm.actions.search.SearchAction.getSearchHistory()) {
779                add(new SearchMenuItem(ss));
780            }
781        }
782    }
783
784    /**
785     * A specialized {@link JMenuItem} for presenting one entry of the selection history
786     *
787     * @author Jan Peter Stotz
788     */
789    protected static class SelectionMenuItem extends JMenuItem implements ActionListener {
790        protected transient Collection<? extends OsmPrimitive> sel;
791
792        public SelectionMenuItem(Collection<? extends OsmPrimitive> sel) {
793            this.sel = sel;
794            int ways = 0;
795            int nodes = 0;
796            int relations = 0;
797            for (OsmPrimitive o : sel) {
798                if (!o.isSelectable()) continue; // skip unselectable primitives
799                if (o instanceof Way) {
800                    ways++;
801                } else if (o instanceof Node) {
802                    nodes++;
803                } else if (o instanceof Relation) {
804                    relations++;
805                }
806            }
807            StringBuilder text = new StringBuilder();
808            if (ways != 0) {
809                text.append(text.length() > 0 ? ", " : "")
810                .append(trn("{0} way", "{0} ways", ways, ways));
811            }
812            if (nodes != 0) {
813                text.append(text.length() > 0 ? ", " : "")
814                .append(trn("{0} node", "{0} nodes", nodes, nodes));
815            }
816            if (relations != 0) {
817                text.append(text.length() > 0 ? ", " : "")
818                .append(trn("{0} relation", "{0} relations", relations, relations));
819            }
820            if (ways + nodes + relations == 0) {
821                text.append(tr("Unselectable now"));
822                this.sel = new ArrayList<>(); // empty selection
823            }
824            DefaultNameFormatter df = DefaultNameFormatter.getInstance();
825            if (ways + nodes + relations == 1) {
826                text.append(": ");
827                for (OsmPrimitive o : sel) {
828                    text.append(o.getDisplayName(df));
829                }
830                setText(text.toString());
831            } else {
832                setText(tr("Selection: {0}", text));
833            }
834            addActionListener(this);
835        }
836
837        @Override
838        public void actionPerformed(ActionEvent e) {
839            Main.getLayerManager().getEditDataSet().setSelected(sel);
840        }
841    }
842
843    /**
844     * The popup menu for the JOSM selection history entries
845     */
846    protected static class SelectionHistoryPopup extends JPopupMenu {
847        public static void launch(Component parent, Collection<Collection<? extends OsmPrimitive>> history) {
848            if (history == null || history.isEmpty()) return;
849            JPopupMenu menu = new SelectionHistoryPopup(history);
850            Rectangle r = parent.getBounds();
851            menu.show(parent, r.x, r.y + r.height);
852        }
853
854        public SelectionHistoryPopup(Collection<Collection<? extends OsmPrimitive>> history) {
855            for (Collection<? extends OsmPrimitive> sel : history) {
856                add(new SelectionMenuItem(sel));
857            }
858        }
859    }
860
861    /**
862     * A transfer handler class for drag-and-drop support.
863     */
864    protected class SelectionTransferHandler extends TransferHandler {
865
866        @Override
867        public int getSourceActions(JComponent c) {
868            return COPY;
869        }
870
871        @Override
872        protected Transferable createTransferable(JComponent c) {
873            return new PrimitiveTransferable(PrimitiveTransferData.getData(getSelectedPrimitives()));
874        }
875    }
876}