001// License: GPL. For details, see LICENSE file.
002package org.openstreetmap.josm.gui.dialogs;
003
004import static org.openstreetmap.josm.tools.I18n.tr;
005
006import java.awt.BorderLayout;
007import java.awt.Component;
008import java.awt.event.ActionEvent;
009import java.awt.event.KeyEvent;
010import java.awt.event.MouseEvent;
011import java.util.ArrayList;
012import java.util.Arrays;
013import java.util.Collection;
014import java.util.Collections;
015import java.util.HashSet;
016import java.util.List;
017import java.util.Set;
018
019import javax.swing.AbstractAction;
020import javax.swing.AbstractListModel;
021import javax.swing.DefaultListSelectionModel;
022import javax.swing.FocusManager;
023import javax.swing.JComponent;
024import javax.swing.JList;
025import javax.swing.JMenuItem;
026import javax.swing.JPanel;
027import javax.swing.JPopupMenu;
028import javax.swing.JScrollPane;
029import javax.swing.KeyStroke;
030import javax.swing.ListSelectionModel;
031
032import org.openstreetmap.josm.Main;
033import org.openstreetmap.josm.actions.ExpertToggleAction;
034import org.openstreetmap.josm.actions.relation.AddSelectionToRelations;
035import org.openstreetmap.josm.actions.relation.DeleteRelationsAction;
036import org.openstreetmap.josm.actions.relation.DownloadMembersAction;
037import org.openstreetmap.josm.actions.relation.DownloadSelectedIncompleteMembersAction;
038import org.openstreetmap.josm.actions.relation.DuplicateRelationAction;
039import org.openstreetmap.josm.actions.relation.EditRelationAction;
040import org.openstreetmap.josm.actions.relation.RecentRelationsAction;
041import org.openstreetmap.josm.actions.relation.SelectMembersAction;
042import org.openstreetmap.josm.actions.relation.SelectRelationAction;
043import org.openstreetmap.josm.actions.search.SearchCompiler;
044import org.openstreetmap.josm.data.osm.DataSet;
045import org.openstreetmap.josm.data.osm.OsmPrimitive;
046import org.openstreetmap.josm.data.osm.Relation;
047import org.openstreetmap.josm.data.osm.event.AbstractDatasetChangedEvent;
048import org.openstreetmap.josm.data.osm.event.DataChangedEvent;
049import org.openstreetmap.josm.data.osm.event.DataSetListener;
050import org.openstreetmap.josm.data.osm.event.DatasetEventManager;
051import org.openstreetmap.josm.data.osm.event.DatasetEventManager.FireMode;
052import org.openstreetmap.josm.data.osm.event.NodeMovedEvent;
053import org.openstreetmap.josm.data.osm.event.PrimitivesAddedEvent;
054import org.openstreetmap.josm.data.osm.event.PrimitivesRemovedEvent;
055import org.openstreetmap.josm.data.osm.event.RelationMembersChangedEvent;
056import org.openstreetmap.josm.data.osm.event.TagsChangedEvent;
057import org.openstreetmap.josm.data.osm.event.WayNodesChangedEvent;
058import org.openstreetmap.josm.gui.DefaultNameFormatter;
059import org.openstreetmap.josm.gui.MapView;
060import org.openstreetmap.josm.gui.NavigatableComponent;
061import org.openstreetmap.josm.gui.OsmPrimitivRenderer;
062import org.openstreetmap.josm.gui.PopupMenuHandler;
063import org.openstreetmap.josm.gui.SideButton;
064import org.openstreetmap.josm.gui.dialogs.relation.RelationEditor;
065import org.openstreetmap.josm.gui.layer.Layer;
066import org.openstreetmap.josm.gui.layer.LayerManager.LayerAddEvent;
067import org.openstreetmap.josm.gui.layer.LayerManager.LayerChangeListener;
068import org.openstreetmap.josm.gui.layer.LayerManager.LayerOrderChangeEvent;
069import org.openstreetmap.josm.gui.layer.LayerManager.LayerRemoveEvent;
070import org.openstreetmap.josm.gui.layer.MainLayerManager.ActiveLayerChangeEvent;
071import org.openstreetmap.josm.gui.layer.MainLayerManager.ActiveLayerChangeListener;
072import org.openstreetmap.josm.gui.layer.OsmDataLayer;
073import org.openstreetmap.josm.gui.util.GuiHelper;
074import org.openstreetmap.josm.gui.util.HighlightHelper;
075import org.openstreetmap.josm.gui.widgets.CompileSearchTextDecorator;
076import org.openstreetmap.josm.gui.widgets.DisableShortcutsOnFocusGainedTextField;
077import org.openstreetmap.josm.gui.widgets.JosmTextField;
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;
083
084/**
085 * A dialog showing all known relations, with buttons to add, edit, and delete them.
086 *
087 * We don't have such dialogs for nodes, segments, and ways, because those
088 * objects are visible on the map and can be selected there. Relations are not.
089 */
090public class RelationListDialog extends ToggleDialog
091        implements DataSetListener, NavigatableComponent.ZoomChangeListener, ExpertToggleAction.ExpertModeChangeListener {
092    /** The display list. */
093    private final JList<Relation> displaylist;
094    /** the list model used */
095    private final RelationListModel model;
096
097    private final NewAction newAction;
098
099    /** the popup menu and its handler */
100    private final JPopupMenu popupMenu = new JPopupMenu();
101    private final transient PopupMenuHandler popupMenuHandler = new PopupMenuHandler(popupMenu);
102
103    private final JosmTextField filter;
104
105    // Actions
106    /** the edit action */
107    private final EditRelationAction editAction = new EditRelationAction();
108    /** the delete action */
109    private final DeleteRelationsAction deleteRelationsAction = new DeleteRelationsAction();
110    /** the duplicate action */
111    private final DuplicateRelationAction duplicateAction = new DuplicateRelationAction();
112    private final DownloadMembersAction downloadMembersAction = new DownloadMembersAction();
113    private final DownloadSelectedIncompleteMembersAction downloadSelectedIncompleteMembersAction =
114            new DownloadSelectedIncompleteMembersAction();
115    private final SelectMembersAction selectMembersAction = new SelectMembersAction(false);
116    private final SelectMembersAction addMembersToSelectionAction = new SelectMembersAction(true);
117    private final SelectRelationAction selectRelationAction = new SelectRelationAction(false);
118    private final SelectRelationAction addRelationToSelectionAction = new SelectRelationAction(true);
119    /** add all selected primitives to the given relations */
120    private final AddSelectionToRelations addSelectionToRelations = new AddSelectionToRelations();
121    private transient JMenuItem addSelectionToRelationMenuItem;
122
123    private final transient HighlightHelper highlightHelper = new HighlightHelper();
124    private final boolean highlightEnabled = Main.pref.getBoolean("draw.target-highlight", true);
125    private final transient RecentRelationsAction recentRelationsAction;
126
127    /**
128     * Constructs <code>RelationListDialog</code>
129     */
130    public RelationListDialog() {
131        super(tr("Relations"), "relationlist", tr("Open a list of all relations."),
132                Shortcut.registerShortcut("subwindow:relations", tr("Toggle: {0}", tr("Relations")),
133                KeyEvent.VK_R, Shortcut.ALT_SHIFT), 150, true);
134
135        // create the list of relations
136        //
137        DefaultListSelectionModel selectionModel = new DefaultListSelectionModel();
138        model = new RelationListModel(selectionModel);
139        displaylist = new JList<>(model);
140        displaylist.setSelectionModel(selectionModel);
141        displaylist.setCellRenderer(new NoTooltipOsmRenderer());
142        displaylist.setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);
143        displaylist.addMouseListener(new MouseEventHandler());
144
145        // the new action
146        //
147        newAction = new NewAction();
148
149        filter = setupFilter();
150
151        displaylist.addListSelectionListener(e -> {
152            if (!e.getValueIsAdjusting()) updateActionsRelationLists();
153        });
154
155        // Setup popup menu handler
156        setupPopupMenuHandler();
157
158        JPanel pane = new JPanel(new BorderLayout());
159        pane.add(filter, BorderLayout.NORTH);
160        pane.add(new JScrollPane(displaylist), BorderLayout.CENTER);
161
162        SideButton editButton = new SideButton(editAction, false);
163        recentRelationsAction = new RecentRelationsAction(editButton);
164
165        createLayout(pane, false, Arrays.asList(new SideButton[]{
166                new SideButton(newAction, false),
167                editButton,
168                new SideButton(duplicateAction, false),
169                new SideButton(deleteRelationsAction, false),
170                new SideButton(selectRelationAction, false)
171        }));
172
173        InputMapUtils.unassignCtrlShiftUpDown(displaylist, JComponent.WHEN_FOCUSED);
174
175        // Select relation on Enter
176        InputMapUtils.addEnterAction(displaylist, selectRelationAction);
177
178        // Edit relation on Ctrl-Enter
179        displaylist.getActionMap().put("edit", editAction);
180        displaylist.getInputMap().put(KeyStroke.getKeyStroke(KeyEvent.VK_ENTER, KeyEvent.CTRL_MASK), "edit");
181
182        // Do not hide copy action because of default JList override (fix #9815)
183        displaylist.getActionMap().put("copy", Main.main.menu.copy);
184        displaylist.getInputMap().put(KeyStroke.getKeyStroke(KeyEvent.VK_C, GuiHelper.getMenuShortcutKeyMaskEx()), "copy");
185
186        updateActionsRelationLists();
187    }
188
189    @Override
190    public void destroy() {
191        model.clear();
192        super.destroy();
193    }
194
195    public void enableRecentRelations() {
196        recentRelationsAction.enableArrow();
197    }
198
199    // inform all actions about list of relations they need
200    private void updateActionsRelationLists() {
201        List<Relation> sel = model.getSelectedRelations();
202        popupMenuHandler.setPrimitives(sel);
203
204        Component focused = FocusManager.getCurrentKeyboardFocusManager().getFocusOwner();
205
206        //update highlights
207        if (highlightEnabled && focused == displaylist && Main.isDisplayingMapView() && highlightHelper.highlightOnly(sel)) {
208            Main.map.mapView.repaint();
209        }
210    }
211
212    @Override
213    public void showNotify() {
214        Main.getLayerManager().addLayerChangeListener(newAction);
215        Main.getLayerManager().addActiveLayerChangeListener(newAction);
216        MapView.addZoomChangeListener(this);
217        newAction.updateEnabledState();
218        DatasetEventManager.getInstance().addDatasetListener(this, FireMode.IN_EDT);
219        DataSet.addSelectionListener(addSelectionToRelations);
220        dataChanged(null);
221        ExpertToggleAction.addExpertModeChangeListener(this);
222        expertChanged(ExpertToggleAction.isExpert());
223    }
224
225    @Override
226    public void hideNotify() {
227        Main.getLayerManager().removeActiveLayerChangeListener(newAction);
228        Main.getLayerManager().removeLayerChangeListener(newAction);
229        MapView.removeZoomChangeListener(this);
230        DatasetEventManager.getInstance().removeDatasetListener(this);
231        DataSet.removeSelectionListener(addSelectionToRelations);
232        ExpertToggleAction.removeExpertModeChangeListener(this);
233    }
234
235    private void resetFilter() {
236        filter.setText(null);
237    }
238
239    /**
240     * Initializes the relation list dialog from a layer. If <code>layer</code> is null
241     * or if it isn't an {@link OsmDataLayer} the dialog is reset to an empty dialog.
242     * Otherwise it is initialized with the list of non-deleted and visible relations
243     * in the layer's dataset.
244     *
245     * @param layer the layer. May be null.
246     */
247    protected void initFromLayer(Layer layer) {
248        if (!(layer instanceof OsmDataLayer)) {
249            model.setRelations(null);
250            return;
251        }
252        OsmDataLayer l = (OsmDataLayer) layer;
253        model.setRelations(l.data.getRelations());
254        model.updateTitle();
255        updateActionsRelationLists();
256    }
257
258    /**
259     * @return The selected relation in the list
260     */
261    private Relation getSelected() {
262        if (model.getSize() == 1) {
263            displaylist.setSelectedIndex(0);
264        }
265        return displaylist.getSelectedValue();
266    }
267
268    /**
269     * Selects the relation <code>relation</code> in the list of relations.
270     *
271     * @param relation  the relation
272     */
273    public void selectRelation(Relation relation) {
274        selectRelations(Collections.singleton(relation));
275    }
276
277    /**
278     * Selects the relations in the list of relations.
279     * @param relations  the relations to be selected
280     */
281    public void selectRelations(Collection<Relation> relations) {
282        if (relations == null || relations.isEmpty()) {
283            model.setSelectedRelations(null);
284        } else {
285            model.setSelectedRelations(relations);
286            Integer i = model.getVisibleRelationIndex(relations.iterator().next());
287            if (i != null) {
288                // Not all relations have to be in the list
289                // (for example when the relation list is hidden, it's not updated with new relations)
290                displaylist.scrollRectToVisible(displaylist.getCellBounds(i, i));
291            }
292        }
293    }
294
295    private JosmTextField setupFilter() {
296        final JosmTextField f = new DisableShortcutsOnFocusGainedTextField();
297        f.setToolTipText(tr("Relation list filter"));
298        final CompileSearchTextDecorator decorator = CompileSearchTextDecorator.decorate(f);
299        f.addPropertyChangeListener("filter", evt -> model.setFilter(decorator.getMatch()));
300        return f;
301    }
302
303    static final class NoTooltipOsmRenderer extends OsmPrimitivRenderer {
304        @Override
305        protected String getComponentToolTipText(OsmPrimitive value) {
306            // Don't show the default tooltip in the relation list
307            return null;
308        }
309    }
310
311    class MouseEventHandler extends PopupMenuLauncher {
312
313        MouseEventHandler() {
314            super(popupMenu);
315        }
316
317        @Override
318        public void mouseExited(MouseEvent me) {
319            if (highlightEnabled) highlightHelper.clear();
320        }
321
322        protected void setCurrentRelationAsSelection() {
323            Main.getLayerManager().getEditDataSet().setSelected(displaylist.getSelectedValue());
324        }
325
326        protected void editCurrentRelation() {
327            EditRelationAction.launchEditor(getSelected());
328        }
329
330        @Override
331        public void mouseClicked(MouseEvent e) {
332            if (Main.getLayerManager().getEditLayer() == null) return;
333            if (isDoubleClick(e)) {
334                if (e.isControlDown()) {
335                    editCurrentRelation();
336                } else {
337                    setCurrentRelationAsSelection();
338                }
339            }
340        }
341    }
342
343    /**
344     * The action for creating a new relation.
345     */
346    static class NewAction extends AbstractAction implements LayerChangeListener, ActiveLayerChangeListener {
347        NewAction() {
348            putValue(SHORT_DESCRIPTION, tr("Create a new relation"));
349            putValue(NAME, tr("New"));
350            new ImageProvider("dialogs", "addrelation").getResource().attachImageIcon(this, true);
351            updateEnabledState();
352        }
353
354        public void run() {
355            RelationEditor.getEditor(Main.getLayerManager().getEditLayer(), null, null).setVisible(true);
356        }
357
358        @Override
359        public void actionPerformed(ActionEvent e) {
360            run();
361        }
362
363        protected void updateEnabledState() {
364            setEnabled(Main.getLayerManager().getEditLayer() != null);
365        }
366
367        @Override
368        public void activeOrEditLayerChanged(ActiveLayerChangeEvent e) {
369            updateEnabledState();
370        }
371
372        @Override
373        public void layerAdded(LayerAddEvent e) {
374            updateEnabledState();
375        }
376
377        @Override
378        public void layerRemoving(LayerRemoveEvent e) {
379            updateEnabledState();
380        }
381
382        @Override
383        public void layerOrderChanged(LayerOrderChangeEvent e) {
384            // Do nothing
385        }
386    }
387
388    /**
389     * The list model for the list of relations displayed in the relation list dialog.
390     */
391    private class RelationListModel extends AbstractListModel<Relation> {
392        private final transient List<Relation> relations = new ArrayList<>();
393        private transient List<Relation> filteredRelations;
394        private final DefaultListSelectionModel selectionModel;
395        private transient SearchCompiler.Match filter;
396
397        RelationListModel(DefaultListSelectionModel selectionModel) {
398            this.selectionModel = selectionModel;
399        }
400
401        /**
402         * Clears the model.
403         */
404        public void clear() {
405            relations.clear();
406            if (filteredRelations != null)
407                filteredRelations.clear();
408            filter = null;
409        }
410
411        /**
412         * Sorts the model using {@link DefaultNameFormatter} relation comparator.
413         */
414        public void sort() {
415            relations.sort(DefaultNameFormatter.getInstance().getRelationComparator());
416        }
417
418        private boolean isValid(Relation r) {
419            return !r.isDeleted() && r.isVisible() && !r.isIncomplete();
420        }
421
422        public void setRelations(Collection<Relation> relations) {
423            List<Relation> sel = getSelectedRelations();
424            this.relations.clear();
425            this.filteredRelations = null;
426            if (relations == null) {
427                selectionModel.clearSelection();
428                fireContentsChanged(this, 0, getSize());
429                return;
430            }
431            for (Relation r: relations) {
432                if (isValid(r)) {
433                    this.relations.add(r);
434                }
435            }
436            sort();
437            updateFilteredRelations();
438            fireIntervalAdded(this, 0, getSize());
439            setSelectedRelations(sel);
440        }
441
442        /**
443         * Add all relations in <code>addedPrimitives</code> to the model for the
444         * relation list dialog
445         *
446         * @param addedPrimitives the collection of added primitives. May include nodes,
447         * ways, and relations.
448         */
449        public void addRelations(Collection<? extends OsmPrimitive> addedPrimitives) {
450            boolean added = false;
451            for (OsmPrimitive p: addedPrimitives) {
452                if (!(p instanceof Relation)) {
453                    continue;
454                }
455
456                Relation r = (Relation) p;
457                if (relations.contains(r)) {
458                    continue;
459                }
460                if (isValid(r)) {
461                    relations.add(r);
462                    added = true;
463                }
464            }
465            if (added) {
466                List<Relation> sel = getSelectedRelations();
467                sort();
468                updateFilteredRelations();
469                fireIntervalAdded(this, 0, getSize());
470                setSelectedRelations(sel);
471            }
472        }
473
474        /**
475         * Removes all relations in <code>removedPrimitives</code> from the model
476         *
477         * @param removedPrimitives the removed primitives. May include nodes, ways,
478         *   and relations
479         */
480        public void removeRelations(Collection<? extends OsmPrimitive> removedPrimitives) {
481            if (removedPrimitives == null) return;
482            // extract the removed relations
483            //
484            Set<Relation> removedRelations = new HashSet<>();
485            for (OsmPrimitive p: removedPrimitives) {
486                if (!(p instanceof Relation)) {
487                    continue;
488                }
489                removedRelations.add((Relation) p);
490            }
491            if (removedRelations.isEmpty())
492                return;
493            int size = relations.size();
494            relations.removeAll(removedRelations);
495            if (filteredRelations != null) {
496                filteredRelations.removeAll(removedRelations);
497            }
498            if (size != relations.size()) {
499                List<Relation> sel = getSelectedRelations();
500                sort();
501                fireContentsChanged(this, 0, getSize());
502                setSelectedRelations(sel);
503            }
504        }
505
506        private void updateFilteredRelations() {
507            if (filter != null) {
508                filteredRelations = new ArrayList<>(SubclassFilteredCollection.filter(relations, filter::match));
509            } else if (filteredRelations != null) {
510                filteredRelations = null;
511            }
512        }
513
514        public void setFilter(final SearchCompiler.Match filter) {
515            this.filter = filter;
516            updateFilteredRelations();
517            List<Relation> sel = getSelectedRelations();
518            fireContentsChanged(this, 0, getSize());
519            setSelectedRelations(sel);
520            updateTitle();
521        }
522
523        private List<Relation> getVisibleRelations() {
524            return filteredRelations == null ? relations : filteredRelations;
525        }
526
527        private Relation getVisibleRelation(int index) {
528            if (index < 0 || index >= getVisibleRelations().size()) return null;
529            return getVisibleRelations().get(index);
530        }
531
532        @Override
533        public Relation getElementAt(int index) {
534            return getVisibleRelation(index);
535        }
536
537        @Override
538        public int getSize() {
539            return getVisibleRelations().size();
540        }
541
542        /**
543         * Replies the list of selected relations. Empty list,
544         * if there are no selected relations.
545         *
546         * @return the list of selected, non-new relations.
547         */
548        public List<Relation> getSelectedRelations() {
549            List<Relation> ret = new ArrayList<>();
550            for (int i = 0; i < getSize(); i++) {
551                if (!selectionModel.isSelectedIndex(i)) {
552                    continue;
553                }
554                ret.add(getVisibleRelation(i));
555            }
556            return ret;
557        }
558
559        /**
560         * Sets the selected relations.
561         *
562         * @param sel the list of selected relations
563         */
564        public void setSelectedRelations(Collection<Relation> sel) {
565            selectionModel.setValueIsAdjusting(true);
566            selectionModel.clearSelection();
567            if (sel != null && !sel.isEmpty()) {
568                if (!getVisibleRelations().containsAll(sel)) {
569                    resetFilter();
570                }
571                for (Relation r: sel) {
572                    Integer i = getVisibleRelationIndex(r);
573                    if (i != null) {
574                        selectionModel.addSelectionInterval(i, i);
575                    }
576                }
577            }
578            selectionModel.setValueIsAdjusting(false);
579        }
580
581        private Integer getVisibleRelationIndex(Relation rel) {
582            int i = getVisibleRelations().indexOf(rel);
583            if (i < 0)
584                return null;
585            return i;
586        }
587
588        public void updateTitle() {
589            if (!relations.isEmpty() && relations.size() != getSize()) {
590                RelationListDialog.this.setTitle(tr("Relations: {0}/{1}", getSize(), relations.size()));
591            } else if (getSize() > 0) {
592                RelationListDialog.this.setTitle(tr("Relations: {0}", getSize()));
593            } else {
594                RelationListDialog.this.setTitle(tr("Relations"));
595            }
596        }
597    }
598
599    private void setupPopupMenuHandler() {
600
601        // -- select action
602        popupMenuHandler.addAction(selectRelationAction);
603        popupMenuHandler.addAction(addRelationToSelectionAction);
604
605        // -- select members action
606        popupMenuHandler.addAction(selectMembersAction);
607        popupMenuHandler.addAction(addMembersToSelectionAction);
608
609        popupMenuHandler.addSeparator();
610        // -- download members action
611        popupMenuHandler.addAction(downloadMembersAction);
612
613        // -- download incomplete members action
614        popupMenuHandler.addAction(downloadSelectedIncompleteMembersAction);
615
616        popupMenuHandler.addSeparator();
617        popupMenuHandler.addAction(editAction).setVisible(false);
618        popupMenuHandler.addAction(duplicateAction).setVisible(false);
619        popupMenuHandler.addAction(deleteRelationsAction).setVisible(false);
620
621        addSelectionToRelationMenuItem = popupMenuHandler.addAction(addSelectionToRelations);
622    }
623
624    /* ---------------------------------------------------------------------------------- */
625    /* Methods that can be called from plugins                                            */
626    /* ---------------------------------------------------------------------------------- */
627
628    /**
629     * Replies the popup menu handler.
630     * @return The popup menu handler
631     */
632    public PopupMenuHandler getPopupMenuHandler() {
633        return popupMenuHandler;
634    }
635
636    /**
637     * Replies the list of selected relations. Empty list, if there are no selected relations.
638     * @return the list of selected, non-new relations.
639     */
640    public Collection<Relation> getSelectedRelations() {
641        return model.getSelectedRelations();
642    }
643
644    /* ---------------------------------------------------------------------------------- */
645    /* DataSetListener                                                                    */
646    /* ---------------------------------------------------------------------------------- */
647
648    @Override
649    public void nodeMoved(NodeMovedEvent event) {
650        /* irrelevant in this context */
651    }
652
653    @Override
654    public void wayNodesChanged(WayNodesChangedEvent event) {
655        /* irrelevant in this context */
656    }
657
658    @Override
659    public void primitivesAdded(final PrimitivesAddedEvent event) {
660        model.addRelations(event.getPrimitives());
661        model.updateTitle();
662    }
663
664    @Override
665    public void primitivesRemoved(final PrimitivesRemovedEvent event) {
666        model.removeRelations(event.getPrimitives());
667        model.updateTitle();
668    }
669
670    @Override
671    public void relationMembersChanged(final RelationMembersChangedEvent event) {
672        List<Relation> sel = model.getSelectedRelations();
673        model.sort();
674        model.setSelectedRelations(sel);
675        displaylist.repaint();
676    }
677
678    @Override
679    public void tagsChanged(TagsChangedEvent event) {
680        OsmPrimitive prim = event.getPrimitive();
681        if (!(prim instanceof Relation))
682            return;
683        // trigger a sort of the relation list because the display name may have changed
684        //
685        List<Relation> sel = model.getSelectedRelations();
686        model.sort();
687        model.setSelectedRelations(sel);
688        displaylist.repaint();
689    }
690
691    @Override
692    public void dataChanged(DataChangedEvent event) {
693        initFromLayer(Main.getLayerManager().getEditLayer());
694    }
695
696    @Override
697    public void otherDatasetChange(AbstractDatasetChangedEvent event) {
698        /* ignore */
699    }
700
701    @Override
702    public void zoomChanged() {
703        // re-filter relations
704        if (model.filter != null) {
705            model.setFilter(model.filter);
706        }
707    }
708
709    @Override
710    public void expertChanged(boolean isExpert) {
711        addSelectionToRelationMenuItem.setVisible(isExpert);
712    }
713}