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.Node;
049import org.openstreetmap.josm.data.osm.OsmPrimitive;
050import org.openstreetmap.josm.data.osm.OsmPrimitiveComparator;
051import org.openstreetmap.josm.data.osm.Relation;
052import org.openstreetmap.josm.data.osm.Way;
053import org.openstreetmap.josm.data.osm.event.AbstractDatasetChangedEvent;
054import org.openstreetmap.josm.data.osm.event.DataChangedEvent;
055import org.openstreetmap.josm.data.osm.event.DataSetListener;
056import org.openstreetmap.josm.data.osm.event.DatasetEventManager;
057import org.openstreetmap.josm.data.osm.event.DatasetEventManager.FireMode;
058import org.openstreetmap.josm.data.osm.event.NodeMovedEvent;
059import org.openstreetmap.josm.data.osm.event.PrimitivesAddedEvent;
060import org.openstreetmap.josm.data.osm.event.PrimitivesRemovedEvent;
061import org.openstreetmap.josm.data.osm.event.RelationMembersChangedEvent;
062import org.openstreetmap.josm.data.osm.event.SelectionEventManager;
063import org.openstreetmap.josm.data.osm.event.TagsChangedEvent;
064import org.openstreetmap.josm.data.osm.event.WayNodesChangedEvent;
065import org.openstreetmap.josm.data.osm.visitor.BoundingXYVisitor;
066import org.openstreetmap.josm.gui.DefaultNameFormatter;
067import org.openstreetmap.josm.gui.MapView;
068import org.openstreetmap.josm.gui.MapView.EditLayerChangeListener;
069import org.openstreetmap.josm.gui.OsmPrimitivRenderer;
070import org.openstreetmap.josm.gui.PopupMenuHandler;
071import org.openstreetmap.josm.gui.SideButton;
072import org.openstreetmap.josm.gui.datatransfer.PrimitiveTransferable;
073import org.openstreetmap.josm.gui.history.HistoryBrowserDialogManager;
074import org.openstreetmap.josm.gui.layer.OsmDataLayer;
075import org.openstreetmap.josm.gui.util.GuiHelper;
076import org.openstreetmap.josm.gui.util.HighlightHelper;
077import org.openstreetmap.josm.gui.widgets.ListPopupMenu;
078import org.openstreetmap.josm.gui.widgets.PopupMenuLauncher;
079import org.openstreetmap.josm.tools.ImageProvider;
080import org.openstreetmap.josm.tools.InputMapUtils;
081import org.openstreetmap.josm.tools.Shortcut;
082import org.openstreetmap.josm.tools.SubclassFilteredCollection;
083import org.openstreetmap.josm.tools.Utils;
084
085/**
086 * A small tool dialog for displaying the current selection.
087 * @since 8
088 */
089public class SelectionListDialog extends ToggleDialog  {
090    private JList<OsmPrimitive> lstPrimitives;
091    private final DefaultListSelectionModel selectionModel = new DefaultListSelectionModel();
092    private final SelectionListModel model = new SelectionListModel(selectionModel);
093
094    private final SelectAction actSelect = new SelectAction();
095    private final SearchAction actSearch = new SearchAction();
096    private final ShowHistoryAction actShowHistory = new ShowHistoryAction();
097    private final ZoomToJOSMSelectionAction actZoomToJOSMSelection = new ZoomToJOSMSelectionAction();
098    private final ZoomToListSelection actZoomToListSelection = new ZoomToListSelection();
099    private final SelectInRelationListAction actSetRelationSelection = new SelectInRelationListAction();
100    private final EditRelationAction actEditRelationSelection = new EditRelationAction();
101    private final DownloadSelectedIncompleteMembersAction actDownloadSelIncompleteMembers = new DownloadSelectedIncompleteMembersAction();
102
103    /** the popup menu and its handler */
104    private final ListPopupMenu popupMenu;
105    private final transient PopupMenuHandler popupMenuHandler;
106
107    /**
108     * Builds the content panel for this dialog
109     */
110    protected void buildContentPanel() {
111        lstPrimitives = new JList<>(model);
112        lstPrimitives.setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);
113        lstPrimitives.setSelectionModel(selectionModel);
114        lstPrimitives.setCellRenderer(new OsmPrimitivRenderer());
115        lstPrimitives.setTransferHandler(new SelectionTransferHandler());
116        if (!GraphicsEnvironment.isHeadless()) {
117            lstPrimitives.setDragEnabled(true);
118        }
119
120        lstPrimitives.getSelectionModel().addListSelectionListener(actSelect);
121        lstPrimitives.getSelectionModel().addListSelectionListener(actShowHistory);
122
123        // the select action
124        final SideButton selectButton = new SideButton(actSelect);
125        selectButton.createArrow(new ActionListener() {
126            @Override
127            public void actionPerformed(ActionEvent e) {
128                SelectionHistoryPopup.launch(selectButton, model.getSelectionHistory());
129            }
130        });
131
132        // the search button
133        final SideButton searchButton = new SideButton(actSearch);
134        searchButton.createArrow(new ActionListener() {
135            @Override
136            public void actionPerformed(ActionEvent e) {
137                SearchPopupMenu.launch(searchButton);
138            }
139        });
140
141        createLayout(lstPrimitives, true, Arrays.asList(new SideButton[] {
142            selectButton, searchButton, new SideButton(actShowHistory)
143        }));
144    }
145
146    /**
147     * Constructs a new {@code SelectionListDialog}.
148     */
149    public SelectionListDialog() {
150        super(tr("Selection"), "selectionlist", tr("Open a selection list window."),
151                Shortcut.registerShortcut("subwindow:selection", tr("Toggle: {0}",
152                tr("Current Selection")), KeyEvent.VK_T, Shortcut.ALT_SHIFT),
153                150, // default height
154                true // default is "show dialog"
155        );
156
157        buildContentPanel();
158        model.addListDataListener(new TitleUpdater());
159        model.addListDataListener(actZoomToJOSMSelection);
160
161        popupMenu = new ListPopupMenu(lstPrimitives);
162        popupMenuHandler = setupPopupMenuHandler();
163
164        lstPrimitives.addListSelectionListener(new ListSelectionListener() {
165            @Override
166            public void valueChanged(ListSelectionEvent e) {
167                actZoomToListSelection.valueChanged(e);
168                popupMenuHandler.setPrimitives(model.getSelected());
169            }
170        });
171
172        lstPrimitives.addMouseListener(new MouseEventHandler());
173
174        InputMapUtils.addEnterAction(lstPrimitives, actZoomToListSelection);
175    }
176
177    @Override
178    public void showNotify() {
179        MapView.addEditLayerChangeListener(model);
180        SelectionEventManager.getInstance().addSelectionListener(actShowHistory, FireMode.IN_EDT_CONSOLIDATED);
181        SelectionEventManager.getInstance().addSelectionListener(model, FireMode.IN_EDT_CONSOLIDATED);
182        DatasetEventManager.getInstance().addDatasetListener(model, FireMode.IN_EDT);
183        MapView.addEditLayerChangeListener(actSearch);
184        // editLayerChanged also gets the selection history of the level
185        OsmDataLayer editLayer = Main.main.getEditLayer();
186        model.editLayerChanged(null, editLayer);
187        if (editLayer != null) {
188            model.setJOSMSelection(editLayer.data.getAllSelected());
189        }
190        actSearch.updateEnabledState();
191    }
192
193    @Override
194    public void hideNotify() {
195        MapView.removeEditLayerChangeListener(actSearch);
196        MapView.removeEditLayerChangeListener(model);
197        SelectionEventManager.getInstance().removeSelectionListener(actShowHistory);
198        SelectionEventManager.getInstance().removeSelectionListener(model);
199        DatasetEventManager.getInstance().removeDatasetListener(model);
200    }
201
202    /**
203     * Responds to double clicks on the list of selected objects and launches the popup menu
204     */
205    class MouseEventHandler extends PopupMenuLauncher {
206        private final HighlightHelper helper = new HighlightHelper();
207        private final boolean highlightEnabled = Main.pref.getBoolean("draw.target-highlight", true);
208
209        MouseEventHandler() {
210            super(popupMenu);
211        }
212
213        @Override
214        public void mouseClicked(MouseEvent e) {
215            int idx = lstPrimitives.locationToIndex(e.getPoint());
216            if (idx < 0) return;
217            if (isDoubleClick(e)) {
218                OsmDataLayer layer = Main.main.getEditLayer();
219                if (layer == null) return;
220                OsmPrimitive osm = model.getElementAt(idx);
221                Collection<OsmPrimitive> sel = layer.data.getSelected();
222                if (sel.size() != 1 || !sel.iterator().next().equals(osm)) {
223                    // Select primitive if it's not the whole current selection
224                    layer.data.setSelected(Collections.singleton(osm));
225                } else if (osm instanceof Relation) {
226                    // else open relation editor if applicable
227                    actEditRelationSelection.actionPerformed(null);
228                }
229            } else if (highlightEnabled && Main.isDisplayingMapView()) {
230                if (helper.highlightOnly(model.getElementAt(idx))) {
231                    Main.map.mapView.repaint();
232                }
233            }
234        }
235
236        @Override
237        public void mouseExited(MouseEvent me) {
238            if (highlightEnabled) helper.clear();
239            super.mouseExited(me);
240        }
241    }
242
243    private PopupMenuHandler setupPopupMenuHandler() {
244        PopupMenuHandler handler = new PopupMenuHandler(popupMenu);
245        handler.addAction(actZoomToJOSMSelection);
246        handler.addAction(actZoomToListSelection);
247        handler.addSeparator();
248        handler.addAction(actSetRelationSelection);
249        handler.addAction(actEditRelationSelection);
250        handler.addSeparator();
251        handler.addAction(actDownloadSelIncompleteMembers);
252        return handler;
253    }
254
255    /**
256     * Replies the popup menu handler.
257     * @return The popup menu handler
258     */
259    public PopupMenuHandler getPopupMenuHandler() {
260        return popupMenuHandler;
261    }
262
263    /**
264     * Replies the selected OSM primitives.
265     * @return The selected OSM primitives
266     */
267    public Collection<OsmPrimitive> getSelectedPrimitives() {
268        return model.getSelected();
269    }
270
271    /**
272     * Updates the dialog title with a summary of the current JOSM selection
273     */
274    class TitleUpdater implements ListDataListener {
275        protected void updateTitle() {
276            setTitle(model.getJOSMSelectionSummary());
277        }
278
279        @Override
280        public void contentsChanged(ListDataEvent e) {
281            updateTitle();
282        }
283
284        @Override
285        public void intervalAdded(ListDataEvent e) {
286            updateTitle();
287        }
288
289        @Override
290        public void intervalRemoved(ListDataEvent e) {
291            updateTitle();
292        }
293    }
294
295    /**
296     * Launches the search dialog
297     */
298    static class SearchAction extends AbstractAction implements EditLayerChangeListener {
299        /**
300         * Constructs a new {@code SearchAction}.
301         */
302        SearchAction() {
303            putValue(NAME, tr("Search"));
304            putValue(SHORT_DESCRIPTION,   tr("Search for objects"));
305            putValue(SMALL_ICON, ImageProvider.get("dialogs", "search"));
306            updateEnabledState();
307        }
308
309        @Override
310        public void actionPerformed(ActionEvent e) {
311            if (!isEnabled()) return;
312            org.openstreetmap.josm.actions.search.SearchAction.search();
313        }
314
315        protected void updateEnabledState() {
316            setEnabled(Main.main != null && Main.main.hasEditLayer());
317        }
318
319        @Override
320        public void editLayerChanged(OsmDataLayer oldLayer, OsmDataLayer newLayer) {
321            updateEnabledState();
322        }
323    }
324
325    /**
326     * Sets the current JOSM selection to the OSM primitives selected in the list
327     * of this dialog
328     */
329    class SelectAction extends AbstractSelectAction implements ListSelectionListener {
330        /**
331         * Constructs a new {@code SelectAction}.
332         */
333        SelectAction() {
334            updateEnabledState();
335        }
336
337        @Override
338        public void actionPerformed(ActionEvent e) {
339            Collection<OsmPrimitive> sel = model.getSelected();
340            if (sel.isEmpty()) return;
341            OsmDataLayer editLayer = Main.main.getEditLayer();
342            if (editLayer == null) return;
343            editLayer.data.setSelected(sel);
344            model.selectionModel.setSelectionInterval(0, sel.size()-1);
345        }
346
347        protected void updateEnabledState() {
348            setEnabled(!model.getSelected().isEmpty());
349        }
350
351        @Override
352        public void valueChanged(ListSelectionEvent e) {
353            updateEnabledState();
354        }
355    }
356
357    /**
358     * The action for showing history information of the current history item.
359     */
360    class ShowHistoryAction extends AbstractAction implements ListSelectionListener, SelectionChangedListener {
361        /**
362         * Constructs a new {@code ShowHistoryAction}.
363         */
364        ShowHistoryAction() {
365            putValue(NAME, tr("History"));
366            putValue(SHORT_DESCRIPTION, tr("Display the history of the selected objects."));
367            putValue(SMALL_ICON, ImageProvider.get("dialogs", "history"));
368            updateEnabledState(model.getSize());
369        }
370
371        @Override
372        public void actionPerformed(ActionEvent e) {
373            Collection<OsmPrimitive> sel = model.getSelected();
374            if (sel.isEmpty() && model.getSize() != 1) {
375                return;
376            } else if (sel.isEmpty()) {
377                sel = Collections.singleton(model.getElementAt(0));
378            }
379            HistoryBrowserDialogManager.getInstance().showHistory(sel);
380        }
381
382        protected void updateEnabledState(int osmSelectionSize) {
383            // See #10830 - allow to click on history button is a single object is selected, even if not selected again in the list
384            setEnabled(!model.getSelected().isEmpty() || osmSelectionSize == 1);
385        }
386
387        @Override
388        public void valueChanged(ListSelectionEvent e) {
389            updateEnabledState(model.getSize());
390        }
391
392        @Override
393        public void selectionChanged(Collection<? extends OsmPrimitive> newSelection) {
394            updateEnabledState(newSelection.size());
395        }
396    }
397
398    /**
399     * The action for zooming to the primitives in the current JOSM selection
400     *
401     */
402    class ZoomToJOSMSelectionAction extends AbstractAction implements ListDataListener {
403
404        ZoomToJOSMSelectionAction() {
405            putValue(NAME, tr("Zoom to selection"));
406            putValue(SHORT_DESCRIPTION, tr("Zoom to selection"));
407            putValue(SMALL_ICON, ImageProvider.get("dialogs/autoscale", "selection"));
408            updateEnabledState();
409        }
410
411        @Override
412        public void actionPerformed(ActionEvent e) {
413            AutoScaleAction.autoScale("selection");
414        }
415
416        public void updateEnabledState() {
417            setEnabled(model.getSize() > 0);
418        }
419
420        @Override
421        public void contentsChanged(ListDataEvent e) {
422            updateEnabledState();
423        }
424
425        @Override
426        public void intervalAdded(ListDataEvent e) {
427            updateEnabledState();
428        }
429
430        @Override
431        public void intervalRemoved(ListDataEvent e) {
432            updateEnabledState();
433        }
434    }
435
436    /**
437     * The action for zooming to the primitives which are currently selected in
438     * the list displaying the JOSM selection
439     *
440     */
441    class ZoomToListSelection extends AbstractAction implements ListSelectionListener {
442        /**
443         * Constructs a new {@code ZoomToListSelection}.
444         */
445        ZoomToListSelection() {
446            putValue(NAME, tr("Zoom to selected element(s)"));
447            putValue(SHORT_DESCRIPTION, tr("Zoom to selected element(s)"));
448            putValue(SMALL_ICON, ImageProvider.get("dialogs/autoscale", "selection"));
449            updateEnabledState();
450        }
451
452        @Override
453        public void actionPerformed(ActionEvent e) {
454            BoundingXYVisitor box = new BoundingXYVisitor();
455            Collection<OsmPrimitive> sel = model.getSelected();
456            if (sel.isEmpty()) return;
457            box.computeBoundingBox(sel);
458            if (box.getBounds() == null)
459                return;
460            box.enlargeBoundingBox();
461            Main.map.mapView.zoomTo(box);
462        }
463
464        protected void updateEnabledState() {
465            setEnabled(!model.getSelected().isEmpty());
466        }
467
468        @Override
469        public void valueChanged(ListSelectionEvent e) {
470            updateEnabledState();
471        }
472    }
473
474    /**
475     * The list model for the list of OSM primitives in the current JOSM selection.
476     *
477     * The model also maintains a history of the last {@link SelectionListModel#SELECTION_HISTORY_SIZE}
478     * JOSM selection.
479     *
480     */
481    private static class SelectionListModel extends AbstractListModel<OsmPrimitive>
482    implements EditLayerChangeListener, SelectionChangedListener, DataSetListener {
483
484        private static final int SELECTION_HISTORY_SIZE = 10;
485
486        // Variable to store history from currentDataSet()
487        private LinkedList<Collection<? extends OsmPrimitive>> history;
488        private final transient List<OsmPrimitive> selection = new ArrayList<>();
489        private final DefaultListSelectionModel selectionModel;
490
491        /**
492         * Constructor
493         * @param selectionModel the selection model used in the list
494         */
495        SelectionListModel(DefaultListSelectionModel selectionModel) {
496            this.selectionModel = selectionModel;
497        }
498
499        /**
500         * Replies a summary of the current JOSM selection
501         *
502         * @return a summary of the current JOSM selection
503         */
504        public synchronized String getJOSMSelectionSummary() {
505            if (selection.isEmpty()) return tr("Selection");
506            int numNodes = 0;
507            int numWays = 0;
508            int numRelations = 0;
509            for (OsmPrimitive p: selection) {
510                switch(p.getType()) {
511                case NODE: numNodes++; break;
512                case WAY: numWays++; break;
513                case RELATION: numRelations++; break;
514                }
515            }
516            return tr("Sel.: Rel.:{0} / Ways:{1} / Nodes:{2}", numRelations, numWays, numNodes);
517        }
518
519        /**
520         * Remembers a JOSM selection the history of JOSM selections
521         *
522         * @param selection the JOSM selection. Ignored if null or empty.
523         */
524        public void remember(Collection<? extends OsmPrimitive> selection) {
525            if (selection == null) return;
526            if (selection.isEmpty()) return;
527            if (history == null) return;
528            if (history.isEmpty()) {
529                history.add(selection);
530                return;
531            }
532            if (history.getFirst().equals(selection)) return;
533            history.addFirst(selection);
534            for (int i = 1; i < history.size(); ++i) {
535                if (history.get(i).equals(selection)) {
536                    history.remove(i);
537                    break;
538                }
539            }
540            int maxsize = Main.pref.getInteger("select.history-size", SELECTION_HISTORY_SIZE);
541            while (history.size() > maxsize) {
542                history.removeLast();
543            }
544        }
545
546        /**
547         * Replies the history of JOSM selections
548         *
549         * @return history of JOSM selections
550         */
551        public List<Collection<? extends OsmPrimitive>> getSelectionHistory() {
552            return history;
553        }
554
555        @Override
556        public synchronized OsmPrimitive getElementAt(int index) {
557            return selection.get(index);
558        }
559
560        @Override
561        public synchronized int getSize() {
562            return selection.size();
563        }
564
565        /**
566         * Replies the collection of OSM primitives currently selected in the view
567         * of this model
568         *
569         * @return choosen elements in the view
570         */
571        public synchronized Collection<OsmPrimitive> getSelected() {
572            Set<OsmPrimitive> sel = new HashSet<>();
573            for (int i = 0; i < getSize(); i++) {
574                if (selectionModel.isSelectedIndex(i)) {
575                    sel.add(selection.get(i));
576                }
577            }
578            return sel;
579        }
580
581        /**
582         * Sets the OSM primitives to be selected in the view of this model
583         *
584         * @param sel the collection of primitives to select
585         */
586        public synchronized void setSelected(Collection<OsmPrimitive> sel) {
587            selectionModel.clearSelection();
588            if (sel == null) return;
589            for (OsmPrimitive p: sel) {
590                int i = selection.indexOf(p);
591                if (i >= 0) {
592                    selectionModel.addSelectionInterval(i, i);
593                }
594            }
595        }
596
597        @Override
598        protected void fireContentsChanged(Object source, int index0, int index1) {
599            Collection<OsmPrimitive> sel = getSelected();
600            super.fireContentsChanged(source, index0, index1);
601            setSelected(sel);
602        }
603
604        /**
605         * Sets the collection of currently selected OSM objects
606         *
607         * @param selection the collection of currently selected OSM objects
608         */
609        public void setJOSMSelection(final Collection<? extends OsmPrimitive> selection) {
610            synchronized (this) {
611                this.selection.clear();
612                if (selection != null) {
613                    this.selection.addAll(selection);
614                    sort();
615                }
616            }
617            GuiHelper.runInEDTAndWait(new Runnable() {
618                @Override public void run() {
619                    fireContentsChanged(this, 0, getSize());
620                    if (selection != null) {
621                        remember(selection);
622                        if (selection.size() == 2) {
623                            Iterator<? extends OsmPrimitive> it = selection.iterator();
624                            OsmPrimitive n1 = it.next();
625                            OsmPrimitive n2 = it.next();
626                            // show distance between two selected nodes with coordinates
627                            if (n1 instanceof Node && n2 instanceof Node) {
628                                LatLon c1 = ((Node) n1).getCoor();
629                                LatLon c2 = ((Node) n2).getCoor();
630                                if (c1 != null && c2 != null) {
631                                    Main.map.statusLine.setDist(c1.greatCircleDistance(c2));
632                                    return;
633                                }
634                            }
635                        }
636                        Main.map.statusLine.setDist(
637                                new SubclassFilteredCollection<OsmPrimitive, Way>(selection, OsmPrimitive.wayPredicate));
638                    }
639                }
640            });
641        }
642
643        /**
644         * Triggers a refresh of the view for all primitives in {@code toUpdate}
645         * which are currently displayed in the view
646         *
647         * @param toUpdate the collection of primitives to update
648         */
649        public synchronized void update(Collection<? extends OsmPrimitive> toUpdate) {
650            if (toUpdate == null) return;
651            if (toUpdate.isEmpty()) return;
652            Collection<OsmPrimitive> sel = getSelected();
653            for (OsmPrimitive p: toUpdate) {
654                int i = selection.indexOf(p);
655                if (i >= 0) {
656                    super.fireContentsChanged(this, i, i);
657                }
658            }
659            setSelected(sel);
660        }
661
662        /**
663         * Sorts the current elements in the selection
664         */
665        public synchronized void sort() {
666            if (this.selection.size() <= Main.pref.getInteger("selection.no_sort_above", 100000)) {
667                boolean quick = this.selection.size() > Main.pref.getInteger("selection.fast_sort_above", 10000);
668                Collections.sort(this.selection, new OsmPrimitiveComparator(quick, false));
669            }
670        }
671
672        /* ------------------------------------------------------------------------ */
673        /* interface EditLayerChangeListener                                        */
674        /* ------------------------------------------------------------------------ */
675        @Override
676        public void editLayerChanged(OsmDataLayer oldLayer, OsmDataLayer newLayer) {
677            if (newLayer == null) {
678                setJOSMSelection(null);
679                history = null;
680            } else {
681                history = newLayer.data.getSelectionHistory();
682                setJOSMSelection(newLayer.data.getAllSelected());
683            }
684        }
685
686        /* ------------------------------------------------------------------------ */
687        /* interface SelectionChangeListener                                        */
688        /* ------------------------------------------------------------------------ */
689        @Override
690        public void selectionChanged(Collection<? extends OsmPrimitive> newSelection) {
691            setJOSMSelection(newSelection);
692        }
693
694        /* ------------------------------------------------------------------------ */
695        /* interface DataSetListener                                                */
696        /* ------------------------------------------------------------------------ */
697        @Override
698        public void dataChanged(DataChangedEvent event) {
699            // refresh the whole list
700            fireContentsChanged(this, 0, getSize());
701        }
702
703        @Override
704        public void nodeMoved(NodeMovedEvent event) {
705            // may influence the display name of primitives, update the data
706            update(event.getPrimitives());
707        }
708
709        @Override
710        public void otherDatasetChange(AbstractDatasetChangedEvent event) {
711            // may influence the display name of primitives, update the data
712            update(event.getPrimitives());
713        }
714
715        @Override
716        public void relationMembersChanged(RelationMembersChangedEvent event) {
717            // may influence the display name of primitives, update the data
718            update(event.getPrimitives());
719        }
720
721        @Override
722        public void tagsChanged(TagsChangedEvent event) {
723            // may influence the display name of primitives, update the data
724            update(event.getPrimitives());
725        }
726
727        @Override
728        public void wayNodesChanged(WayNodesChangedEvent event) {
729            // may influence the display name of primitives, update the data
730            update(event.getPrimitives());
731        }
732
733        @Override
734        public void primitivesAdded(PrimitivesAddedEvent event) {
735            /* ignored - handled by SelectionChangeListener */
736        }
737
738        @Override
739        public void primitivesRemoved(PrimitivesRemovedEvent event) {
740            /* ignored - handled by SelectionChangeListener*/
741        }
742    }
743
744    /**
745     * A specialized {@link JMenuItem} for presenting one entry of the search history
746     *
747     * @author Jan Peter Stotz
748     */
749    protected static class SearchMenuItem extends JMenuItem implements ActionListener {
750        protected final transient SearchSetting s;
751
752        public SearchMenuItem(SearchSetting s) {
753            super(Utils.shortenString(s.toString(),
754                    org.openstreetmap.josm.actions.search.SearchAction.MAX_LENGTH_SEARCH_EXPRESSION_DISPLAY));
755            this.s = s;
756            addActionListener(this);
757        }
758
759        @Override
760        public void actionPerformed(ActionEvent e) {
761            org.openstreetmap.josm.actions.search.SearchAction.searchWithoutHistory(s);
762        }
763    }
764
765    /**
766     * The popup menu for the search history entries
767     *
768     */
769    protected static class SearchPopupMenu extends JPopupMenu {
770        public static void launch(Component parent) {
771            if (org.openstreetmap.josm.actions.search.SearchAction.getSearchHistory().isEmpty())
772                return;
773            JPopupMenu menu = new SearchPopupMenu();
774            Rectangle r = parent.getBounds();
775            menu.show(parent, r.x, r.y + r.height);
776        }
777
778        /**
779         * Constructs a new {@code SearchPopupMenu}.
780         */
781        public SearchPopupMenu() {
782            for (SearchSetting ss: org.openstreetmap.josm.actions.search.SearchAction.getSearchHistory()) {
783                add(new SearchMenuItem(ss));
784            }
785        }
786    }
787
788    /**
789     * A specialized {@link JMenuItem} for presenting one entry of the selection history
790     *
791     * @author Jan Peter Stotz
792     */
793    protected static class SelectionMenuItem extends JMenuItem implements ActionListener {
794        protected transient Collection<? extends OsmPrimitive> sel;
795
796        public SelectionMenuItem(Collection<? extends OsmPrimitive> sel) {
797            this.sel = sel;
798            int ways = 0;
799            int nodes = 0;
800            int relations = 0;
801            for (OsmPrimitive o : sel) {
802                if (!o.isSelectable()) continue; // skip unselectable primitives
803                if (o instanceof Way) {
804                    ways++;
805                } else if (o instanceof Node) {
806                    nodes++;
807                } else if (o instanceof Relation) {
808                    relations++;
809                }
810            }
811            StringBuilder text = new StringBuilder();
812            if (ways != 0) {
813                text.append(text.length() > 0 ? ", " : "")
814                .append(trn("{0} way", "{0} ways", ways, ways));
815            }
816            if (nodes != 0) {
817                text.append(text.length() > 0 ? ", " : "")
818                .append(trn("{0} node", "{0} nodes", nodes, nodes));
819            }
820            if (relations != 0) {
821                text.append(text.length() > 0 ? ", " : "")
822                .append(trn("{0} relation", "{0} relations", relations, relations));
823            }
824            if (ways + nodes + relations == 0) {
825                text.append(tr("Unselectable now"));
826                this.sel = new ArrayList<>(); // empty selection
827            }
828            DefaultNameFormatter df = DefaultNameFormatter.getInstance();
829            if (ways + nodes + relations == 1) {
830                text.append(": ");
831                for (OsmPrimitive o : sel) {
832                    text.append(o.getDisplayName(df));
833                }
834                setText(text.toString());
835            } else {
836                setText(tr("Selection: {0}", text));
837            }
838            addActionListener(this);
839        }
840
841        @Override
842        public void actionPerformed(ActionEvent e) {
843            Main.main.getCurrentDataSet().setSelected(sel);
844        }
845    }
846
847    /**
848     * The popup menu for the JOSM selection history entries
849     */
850    protected static class SelectionHistoryPopup extends JPopupMenu {
851        public static void launch(Component parent, Collection<Collection<? extends OsmPrimitive>> history) {
852            if (history == null || history.isEmpty()) return;
853            JPopupMenu menu = new SelectionHistoryPopup(history);
854            Rectangle r = parent.getBounds();
855            menu.show(parent, r.x, r.y + r.height);
856        }
857
858        public SelectionHistoryPopup(Collection<Collection<? extends OsmPrimitive>> history) {
859            for (Collection<? extends OsmPrimitive> sel : history) {
860                add(new SelectionMenuItem(sel));
861            }
862        }
863    }
864
865    /**
866     * A transfer handler class for drag-and-drop support.
867     */
868    protected class SelectionTransferHandler extends TransferHandler {
869
870        @Override
871        public int getSourceActions(JComponent c) {
872            return COPY;
873        }
874
875        @Override
876        protected Transferable createTransferable(JComponent c) {
877            return new PrimitiveTransferable(getSelectedPrimitives());
878        }
879    }
880}