001// License: GPL. For details, see LICENSE file.
002package org.openstreetmap.josm.gui.dialogs.relation;
003
004import java.util.ArrayList;
005import java.util.Arrays;
006import java.util.Collection;
007import java.util.Collections;
008import java.util.EnumSet;
009import java.util.HashSet;
010import java.util.Iterator;
011import java.util.List;
012import java.util.Set;
013import java.util.TreeSet;
014import java.util.concurrent.CopyOnWriteArrayList;
015
016import javax.swing.DefaultListSelectionModel;
017import javax.swing.ListSelectionModel;
018import javax.swing.event.TableModelEvent;
019import javax.swing.event.TableModelListener;
020import javax.swing.table.AbstractTableModel;
021
022import org.openstreetmap.josm.Main;
023import org.openstreetmap.josm.data.SelectionChangedListener;
024import org.openstreetmap.josm.data.osm.DataSet;
025import org.openstreetmap.josm.data.osm.OsmPrimitive;
026import org.openstreetmap.josm.data.osm.Relation;
027import org.openstreetmap.josm.data.osm.RelationMember;
028import org.openstreetmap.josm.data.osm.event.AbstractDatasetChangedEvent;
029import org.openstreetmap.josm.data.osm.event.DataChangedEvent;
030import org.openstreetmap.josm.data.osm.event.DataSetListener;
031import org.openstreetmap.josm.data.osm.event.NodeMovedEvent;
032import org.openstreetmap.josm.data.osm.event.PrimitivesAddedEvent;
033import org.openstreetmap.josm.data.osm.event.PrimitivesRemovedEvent;
034import org.openstreetmap.josm.data.osm.event.RelationMembersChangedEvent;
035import org.openstreetmap.josm.data.osm.event.TagsChangedEvent;
036import org.openstreetmap.josm.data.osm.event.WayNodesChangedEvent;
037import org.openstreetmap.josm.gui.dialogs.relation.sort.RelationSorter;
038import org.openstreetmap.josm.gui.dialogs.relation.sort.WayConnectionType;
039import org.openstreetmap.josm.gui.dialogs.relation.sort.WayConnectionTypeCalculator;
040import org.openstreetmap.josm.gui.layer.OsmDataLayer;
041import org.openstreetmap.josm.gui.tagging.PresetHandler;
042import org.openstreetmap.josm.gui.tagging.TaggingPreset;
043import org.openstreetmap.josm.gui.tagging.TaggingPresetType;
044import org.openstreetmap.josm.gui.widgets.OsmPrimitivesTableModel;
045
046public class MemberTableModel extends AbstractTableModel implements TableModelListener, SelectionChangedListener, DataSetListener, OsmPrimitivesTableModel {
047
048    /**
049     * data of the table model: The list of members and the cached WayConnectionType of each member.
050     **/
051    private List<RelationMember> members;
052    private List<WayConnectionType> connectionType = null;
053
054    private DefaultListSelectionModel listSelectionModel;
055    private final CopyOnWriteArrayList<IMemberModelListener> listeners;
056    private final OsmDataLayer layer;
057    private final PresetHandler presetHandler;
058
059    private final WayConnectionTypeCalculator wayConnectionTypeCalculator = new WayConnectionTypeCalculator();
060    private final RelationSorter relationSorter = new RelationSorter();
061
062    /**
063     * constructor
064     */
065    public MemberTableModel(OsmDataLayer layer, PresetHandler presetHandler) {
066        members = new ArrayList<>();
067        listeners = new CopyOnWriteArrayList<>();
068        this.layer = layer;
069        this.presetHandler = presetHandler;
070        addTableModelListener(this);
071    }
072
073    public OsmDataLayer getLayer() {
074        return layer;
075    }
076
077    public void register() {
078        DataSet.addSelectionListener(this);
079        getLayer().data.addDataSetListener(this);
080    }
081
082    public void unregister() {
083        DataSet.removeSelectionListener(this);
084        getLayer().data.removeDataSetListener(this);
085    }
086
087    /* --------------------------------------------------------------------------- */
088    /* Interface SelectionChangedListener                                          */
089    /* --------------------------------------------------------------------------- */
090    @Override
091    public void selectionChanged(Collection<? extends OsmPrimitive> newSelection) {
092        if (Main.main.getEditLayer() != this.layer) return;
093        // just trigger a repaint
094        Collection<RelationMember> sel = getSelectedMembers();
095        fireTableDataChanged();
096        setSelectedMembers(sel);
097    }
098
099    /* --------------------------------------------------------------------------- */
100    /* Interface DataSetListener                                                   */
101    /* --------------------------------------------------------------------------- */
102    @Override
103    public void dataChanged(DataChangedEvent event) {
104        // just trigger a repaint - the display name of the relation members may
105        // have changed
106        Collection<RelationMember> sel = getSelectedMembers();
107        fireTableDataChanged();
108        setSelectedMembers(sel);
109    }
110
111    @Override
112    public void nodeMoved(NodeMovedEvent event) {/* ignore */}
113    @Override
114    public void primitivesAdded(PrimitivesAddedEvent event) {/* ignore */}
115
116    @Override
117    public void primitivesRemoved(PrimitivesRemovedEvent event) {
118        // ignore - the relation in the editor might become out of sync with the relation
119        // in the dataset. We will deal with it when the relation editor is closed or
120        // when the changes in the editor are applied.
121    }
122
123    @Override
124    public void relationMembersChanged(RelationMembersChangedEvent event) {
125        // ignore - the relation in the editor might become out of sync with the relation
126        // in the dataset. We will deal with it when the relation editor is closed or
127        // when the changes in the editor are applied.
128    }
129
130    @Override
131    public void tagsChanged(TagsChangedEvent event) {
132        // just refresh the respective table cells
133        //
134        Collection<RelationMember> sel = getSelectedMembers();
135        for (int i=0; i < members.size();i++) {
136            if (members.get(i).getMember() == event.getPrimitive()) {
137                fireTableCellUpdated(i, 1 /* the column with the primitive name */);
138            }
139        }
140        setSelectedMembers(sel);
141    }
142
143    @Override
144    public void wayNodesChanged(WayNodesChangedEvent event) {/* ignore */}
145
146    @Override
147    public void otherDatasetChange(AbstractDatasetChangedEvent event) {/* ignore */}
148    /* --------------------------------------------------------------------------- */
149
150    public void addMemberModelListener(IMemberModelListener listener) {
151        if (listener != null) {
152            listeners.addIfAbsent(listener);
153        }
154    }
155
156    public void removeMemberModelListener(IMemberModelListener listener) {
157        listeners.remove(listener);
158    }
159
160    protected void fireMakeMemberVisible(int index) {
161        for (IMemberModelListener listener : listeners) {
162            listener.makeMemberVisible(index);
163        }
164    }
165
166    public void populate(Relation relation) {
167        members.clear();
168        if (relation != null) {
169            // make sure we work with clones of the relation members
170            // in the model.
171            members.addAll(new Relation(relation).getMembers());
172        }
173        fireTableDataChanged();
174    }
175
176    @Override
177    public int getColumnCount() {
178        return 3;
179    }
180
181    @Override
182    public int getRowCount() {
183        return members.size();
184    }
185
186    @Override
187    public Object getValueAt(int rowIndex, int columnIndex) {
188        switch (columnIndex) {
189        case 0:
190            return members.get(rowIndex).getRole();
191        case 1:
192            return members.get(rowIndex).getMember();
193        case 2:
194            return getWayConnection(rowIndex);
195        }
196        // should not happen
197        return null;
198    }
199
200    @Override
201    public boolean isCellEditable(int rowIndex, int columnIndex) {
202        return columnIndex == 0;
203    }
204
205    @Override
206    public void setValueAt(Object value, int rowIndex, int columnIndex) {
207        // fix #10524 - IndexOutOfBoundsException: Index: 2, Size: 2
208        if (rowIndex >= members.size()) {
209            return;
210        }
211        RelationMember member = members.get(rowIndex);
212        RelationMember newMember = new RelationMember(value.toString(), member.getMember());
213        members.remove(rowIndex);
214        members.add(rowIndex, newMember);
215    }
216
217    @Override
218    public OsmPrimitive getReferredPrimitive(int idx) {
219        return members.get(idx).getMember();
220    }
221
222    public void moveUp(int[] selectedRows) {
223        if (!canMoveUp(selectedRows))
224            return;
225
226        for (int row : selectedRows) {
227            RelationMember member1 = members.get(row);
228            RelationMember member2 = members.get(row - 1);
229            members.set(row, member2);
230            members.set(row - 1, member1);
231        }
232        fireTableDataChanged();
233        getSelectionModel().setValueIsAdjusting(true);
234        getSelectionModel().clearSelection();
235        for (int row : selectedRows) {
236            row--;
237            getSelectionModel().addSelectionInterval(row, row);
238        }
239        getSelectionModel().setValueIsAdjusting(false);
240        fireMakeMemberVisible(selectedRows[0] - 1);
241    }
242
243    public void moveDown(int[] selectedRows) {
244        if (!canMoveDown(selectedRows))
245            return;
246
247        for (int i = selectedRows.length - 1; i >= 0; i--) {
248            int row = selectedRows[i];
249            RelationMember member1 = members.get(row);
250            RelationMember member2 = members.get(row + 1);
251            members.set(row, member2);
252            members.set(row + 1, member1);
253        }
254        fireTableDataChanged();
255        getSelectionModel();
256        getSelectionModel().setValueIsAdjusting(true);
257        getSelectionModel().clearSelection();
258        for (int row : selectedRows) {
259            row++;
260            getSelectionModel().addSelectionInterval(row, row);
261        }
262        getSelectionModel().setValueIsAdjusting(false);
263        fireMakeMemberVisible(selectedRows[0] + 1);
264    }
265
266    public void remove(int[] selectedRows) {
267        if (!canRemove(selectedRows))
268            return;
269        int offset = 0;
270        for (int row : selectedRows) {
271            row -= offset;
272            if (members.size() > row) {
273                members.remove(row);
274                offset++;
275            }
276        }
277        fireTableDataChanged();
278    }
279
280    public boolean canMoveUp(int[] rows) {
281        if (rows == null || rows.length == 0)
282            return false;
283        Arrays.sort(rows);
284        return rows[0] > 0 && members.size() > 0;
285    }
286
287    public boolean canMoveDown(int[] rows) {
288        if (rows == null || rows.length == 0)
289            return false;
290        Arrays.sort(rows);
291        return members.size() > 0 && rows[rows.length - 1] < members.size() - 1;
292    }
293
294    public boolean canRemove(int[] rows) {
295        if (rows == null || rows.length == 0)
296            return false;
297        return true;
298    }
299
300    public DefaultListSelectionModel getSelectionModel() {
301        if (listSelectionModel == null) {
302            listSelectionModel = new DefaultListSelectionModel();
303            listSelectionModel.setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);
304        }
305        return listSelectionModel;
306    }
307
308    public void removeMembersReferringTo(List<? extends OsmPrimitive> primitives) {
309        if (primitives == null)
310            return;
311        Iterator<RelationMember> it = members.iterator();
312        while (it.hasNext()) {
313            RelationMember member = it.next();
314            if (primitives.contains(member.getMember())) {
315                it.remove();
316            }
317        }
318        fireTableDataChanged();
319    }
320
321    public void applyToRelation(Relation relation) {
322        relation.setMembers(members);
323    }
324
325    public boolean hasSameMembersAs(Relation relation) {
326        if (relation == null)
327            return false;
328        if (relation.getMembersCount() != members.size())
329            return false;
330        for (int i = 0; i < relation.getMembersCount(); i++) {
331            if (!relation.getMember(i).equals(members.get(i)))
332                return false;
333        }
334        return true;
335    }
336
337    /**
338     * Replies the set of incomplete primitives
339     *
340     * @return the set of incomplete primitives
341     */
342    public Set<OsmPrimitive> getIncompleteMemberPrimitives() {
343        Set<OsmPrimitive> ret = new HashSet<>();
344        for (RelationMember member : members) {
345            if (member.getMember().isIncomplete()) {
346                ret.add(member.getMember());
347            }
348        }
349        return ret;
350    }
351
352    /**
353     * Replies the set of selected incomplete primitives
354     *
355     * @return the set of selected incomplete primitives
356     */
357    public Set<OsmPrimitive> getSelectedIncompleteMemberPrimitives() {
358        Set<OsmPrimitive> ret = new HashSet<>();
359        for (RelationMember member : getSelectedMembers()) {
360            if (member.getMember().isIncomplete()) {
361                ret.add(member.getMember());
362            }
363        }
364        return ret;
365    }
366
367    /**
368     * Replies true if at least one the relation members is incomplete
369     *
370     * @return true if at least one the relation members is incomplete
371     */
372    public boolean hasIncompleteMembers() {
373        for (RelationMember member : members) {
374            if (member.getMember().isIncomplete())
375                return true;
376        }
377        return false;
378    }
379
380    /**
381     * Replies true if at least one of the selected members is incomplete
382     *
383     * @return true if at least one of the selected members is incomplete
384     */
385    public boolean hasIncompleteSelectedMembers() {
386        for (RelationMember member : getSelectedMembers()) {
387            if (member.getMember().isIncomplete())
388                return true;
389        }
390        return false;
391    }
392
393    protected List<Integer> getSelectedIndices() {
394        List<Integer> selectedIndices = new ArrayList<>();
395        for (int i = 0; i < members.size(); i++) {
396            if (getSelectionModel().isSelectedIndex(i)) {
397                selectedIndices.add(i);
398            }
399        }
400        return selectedIndices;
401    }
402
403    private void addMembersAtIndex(List<? extends OsmPrimitive> primitives, int index) {
404        final Collection<TaggingPreset> presets = TaggingPreset.getMatchingPresets(EnumSet.of(TaggingPresetType.RELATION), presetHandler.getSelection().iterator().next().getKeys(), false);
405        if (primitives == null)
406            return;
407        int idx = index;
408        for (OsmPrimitive primitive : primitives) {
409            Set<String> potentialRoles = new TreeSet<>();
410            for (TaggingPreset tp : presets) {
411                String suggestedRole = tp.suggestRoleForOsmPrimitive(primitive);
412                if (suggestedRole != null) {
413                    potentialRoles.add(suggestedRole);
414                }
415            }
416            // TODO: propose user to choose role among potential ones instead of picking first one
417            final String role = potentialRoles.isEmpty() ? null : potentialRoles.iterator().next();
418            RelationMember member = new RelationMember(role == null ? "" : role, primitive);
419            members.add(idx++, member);
420        }
421        fireTableDataChanged();
422        getSelectionModel().clearSelection();
423        getSelectionModel().addSelectionInterval(index, index + primitives.size() - 1);
424        fireMakeMemberVisible(index);
425    }
426
427    public void addMembersAtBeginning(List<? extends OsmPrimitive> primitives) {
428        addMembersAtIndex(primitives, 0);
429    }
430
431    public void addMembersAtEnd(List<? extends OsmPrimitive> primitives) {
432        addMembersAtIndex(primitives, members.size());
433    }
434
435    public void addMembersBeforeIdx(List<? extends OsmPrimitive> primitives, int idx) {
436        addMembersAtIndex(primitives, idx);
437    }
438
439    public void addMembersAfterIdx(List<? extends OsmPrimitive> primitives, int idx) {
440        addMembersAtIndex(primitives, idx + 1);
441    }
442
443    /**
444     * Replies the number of members which refer to a particular primitive
445     *
446     * @param primitive the primitive
447     * @return the number of members which refer to a particular primitive
448     */
449    public int getNumMembersWithPrimitive(OsmPrimitive primitive) {
450        int count = 0;
451        for (RelationMember member : members) {
452            if (member.getMember().equals(primitive)) {
453                count++;
454            }
455        }
456        return count;
457    }
458
459    /**
460     * updates the role of the members given by the indices in <code>idx</code>
461     *
462     * @param idx the array of indices
463     * @param role the new role
464     */
465    public void updateRole(int[] idx, String role) {
466        if (idx == null || idx.length == 0)
467            return;
468        for (int row : idx) {
469            // fix #7885 - IndexOutOfBoundsException: Index: 39, Size: 39
470            if (row >= members.size()) {
471                continue;
472            }
473            RelationMember oldMember = members.get(row);
474            RelationMember newMember = new RelationMember(role, oldMember.getMember());
475            members.remove(row);
476            members.add(row, newMember);
477        }
478        fireTableDataChanged();
479        for (int row : idx) {
480            getSelectionModel().addSelectionInterval(row, row);
481        }
482    }
483
484    /**
485     * Get the currently selected relation members
486     *
487     * @return a collection with the currently selected relation members
488     */
489    public Collection<RelationMember> getSelectedMembers() {
490        List<RelationMember> selectedMembers = new ArrayList<>();
491        for (int i : getSelectedIndices()) {
492            selectedMembers.add(members.get(i));
493        }
494        return selectedMembers;
495    }
496
497    /**
498     * Replies the set of selected referers. Never null, but may be empty.
499     *
500     * @return the set of selected referers
501     */
502    public Collection<OsmPrimitive> getSelectedChildPrimitives() {
503        Collection<OsmPrimitive> ret = new ArrayList<>();
504        for (RelationMember m: getSelectedMembers()) {
505            ret.add(m.getMember());
506        }
507        return ret;
508    }
509
510    /**
511     * Replies the set of selected referers. Never null, but may be empty.
512     *
513     * @return the set of selected referers
514     */
515    public Set<OsmPrimitive> getChildPrimitives(Collection<? extends OsmPrimitive> referenceSet) {
516        HashSet<OsmPrimitive> ret = new HashSet<>();
517        if (referenceSet == null) return null;
518        for (RelationMember m: members) {
519            if (referenceSet.contains(m.getMember())) {
520                ret.add(m.getMember());
521            }
522        }
523        return ret;
524    }
525
526    /**
527     * Selects the members in the collection selectedMembers
528     *
529     * @param selectedMembers the collection of selected members
530     */
531    public void setSelectedMembers(Collection<RelationMember> selectedMembers) {
532        if (selectedMembers == null || selectedMembers.isEmpty()) {
533            getSelectionModel().clearSelection();
534            return;
535        }
536
537        // lookup the indices for the respective members
538        //
539        Set<Integer> selectedIndices = new HashSet<>();
540        for (RelationMember member : selectedMembers) {
541            for (int idx = 0; idx < members.size(); ++idx) {
542                if (member.equals(members.get(idx))) {
543                    selectedIndices.add(idx);
544                }
545            }
546        }
547        setSelectedMembersIdx(selectedIndices);
548    }
549
550    /**
551     * Selects the members in the collection selectedIndices
552     *
553     * @param selectedIndices the collection of selected member indices
554     */
555    public void setSelectedMembersIdx(Collection<Integer> selectedIndices) {
556        if (selectedIndices == null || selectedIndices.isEmpty()) {
557            getSelectionModel().clearSelection();
558            return;
559        }
560        // select the members
561        //
562        getSelectionModel().setValueIsAdjusting(true);
563        getSelectionModel().clearSelection();
564        for (int row : selectedIndices) {
565            getSelectionModel().addSelectionInterval(row, row);
566        }
567        getSelectionModel().setValueIsAdjusting(false);
568        // make the first selected member visible
569        //
570        if (!selectedIndices.isEmpty()) {
571            fireMakeMemberVisible(Collections.min(selectedIndices));
572        }
573    }
574
575    /**
576     * Replies true if the index-th relation members referrs
577     * to an editable relation, i.e. a relation which is not
578     * incomplete.
579     *
580     * @param index the index
581     * @return true, if the index-th relation members referrs
582     * to an editable relation, i.e. a relation which is not
583     * incomplete
584     */
585    public boolean isEditableRelation(int index) {
586        if (index < 0 || index >= members.size())
587            return false;
588        RelationMember member = members.get(index);
589        if (!member.isRelation())
590            return false;
591        Relation r = member.getRelation();
592        return !r.isIncomplete();
593    }
594
595    /**
596     * Replies true if there is at least one relation member given as {@code members}
597     * which refers to at least on the primitives in {@code primitives}.
598     *
599     * @param members the members
600     * @param primitives the collection of primitives
601     * @return true if there is at least one relation member in this model
602     * which refers to at least on the primitives in <code>primitives</code>; false
603     * otherwise
604     */
605    public static boolean hasMembersReferringTo(Collection<RelationMember> members, Collection<OsmPrimitive> primitives) {
606        if (primitives == null || primitives.isEmpty())
607            return false;
608        HashSet<OsmPrimitive> referrers = new HashSet<>();
609        for (RelationMember member : members) {
610            referrers.add(member.getMember());
611        }
612        for (OsmPrimitive referred : primitives) {
613            if (referrers.contains(referred))
614                return true;
615        }
616        return false;
617    }
618
619    /**
620     * Replies true if there is at least one relation member in this model
621     * which refers to at least on the primitives in <code>primitives</code>.
622     *
623     * @param primitives the collection of primitives
624     * @return true if there is at least one relation member in this model
625     * which refers to at least on the primitives in <code>primitives</code>; false
626     * otherwise
627     */
628    public boolean hasMembersReferringTo(Collection<OsmPrimitive> primitives) {
629        return hasMembersReferringTo(members, primitives);
630    }
631
632    /**
633     * Selects all mebers which refer to {@link OsmPrimitive}s in the collections
634     * <code>primitmives</code>. Does nothing is primitives is null.
635     *
636     * @param primitives the collection of primitives
637     */
638    public void selectMembersReferringTo(Collection<? extends OsmPrimitive> primitives) {
639        if (primitives == null) return;
640        getSelectionModel().setValueIsAdjusting(true);
641        getSelectionModel().clearSelection();
642        for (int i=0; i< members.size();i++) {
643            RelationMember m = members.get(i);
644            if (primitives.contains(m.getMember())) {
645                this.getSelectionModel().addSelectionInterval(i,i);
646            }
647        }
648        getSelectionModel().setValueIsAdjusting(false);
649        if (!getSelectedIndices().isEmpty()) {
650            fireMakeMemberVisible(getSelectedIndices().get(0));
651        }
652    }
653
654    /**
655     * Replies true if <code>primitive</code> is currently selected in the layer this
656     * model is attached to
657     *
658     * @param primitive the primitive
659     * @return true if <code>primitive</code> is currently selected in the layer this
660     * model is attached to, false otherwise
661     */
662    public boolean isInJosmSelection(OsmPrimitive primitive) {
663        return layer.data.isSelected(primitive);
664    }
665
666    /**
667     * Replies true if the layer this model belongs to is equal to the active
668     * layer
669     *
670     * @return true if the layer this model belongs to is equal to the active
671     * layer
672     */
673    protected boolean isActiveLayer() {
674        if (!Main.isDisplayingMapView()) return false;
675        return Main.map.mapView.getActiveLayer() == layer;
676    }
677
678    /**
679     * Sort the selected relation members by the way they are linked.
680     */
681    void sort() {
682        List<RelationMember> selectedMembers = new ArrayList<>(getSelectedMembers());
683        List<RelationMember> sortedMembers = null;
684        List<RelationMember> newMembers;
685        if (selectedMembers.size() <= 1) {
686            newMembers = relationSorter.sortMembers(members);
687            sortedMembers = newMembers;
688        } else {
689            sortedMembers = relationSorter.sortMembers(selectedMembers);
690            List<Integer> selectedIndices = getSelectedIndices();
691            newMembers = new ArrayList<>();
692            boolean inserted = false;
693            for (int i=0; i < members.size(); i++) {
694                if (selectedIndices.contains(i)) {
695                    if (!inserted) {
696                        newMembers.addAll(sortedMembers);
697                        inserted = true;
698                    }
699                } else {
700                    newMembers.add(members.get(i));
701                }
702            }
703        }
704
705        if (members.size() != newMembers.size()) throw new AssertionError();
706
707        members.clear();
708        members.addAll(newMembers);
709        fireTableDataChanged();
710        setSelectedMembers(sortedMembers);
711    }
712
713
714    WayConnectionType getWayConnection(int i) {
715        if (connectionType == null) {
716            connectionType = wayConnectionTypeCalculator.updateLinks(members);
717        }
718        return connectionType.get(i);
719    }
720
721    @Override
722    public void tableChanged(TableModelEvent e) {
723        connectionType = null;
724    }
725
726    /**
727     * Reverse the relation members.
728     */
729    void reverse() {
730        List<Integer> selectedIndices = getSelectedIndices();
731        List<Integer> selectedIndicesReversed = getSelectedIndices();
732
733        if (selectedIndices.size() <= 1) {
734            Collections.reverse(members);
735            fireTableDataChanged();
736            setSelectedMembers(members);
737        } else {
738            Collections.reverse(selectedIndicesReversed);
739
740            List<RelationMember> newMembers = new ArrayList<>(members);
741
742            for (int i=0; i < selectedIndices.size(); i++) {
743                newMembers.set(selectedIndices.get(i), members.get(selectedIndicesReversed.get(i)));
744            }
745
746            if (members.size() != newMembers.size()) throw new AssertionError();
747            members.clear();
748            members.addAll(newMembers);
749            fireTableDataChanged();
750            setSelectedMembersIdx(selectedIndices);
751        }
752    }
753}