001// License: GPL. For details, see LICENSE file.
002package org.openstreetmap.josm.gui.history;
003
004import java.awt.Rectangle;
005
006import javax.swing.JTable;
007import javax.swing.ListSelectionModel;
008import javax.swing.event.TableModelEvent;
009import javax.swing.event.TableModelListener;
010
011/**
012 * RelationMemberListViewer is a UI component which displays the  list of relation members of two
013 * version of a {@link org.openstreetmap.josm.data.osm.Relation} in a {@link org.openstreetmap.josm.data.osm.history.History}.
014 *
015 * <ul>
016 *   <li>on the left, it displays the list of relation members for the version at {@link PointInTimeType#REFERENCE_POINT_IN_TIME}</li>
017 *   <li>on the right, it displays the list of relation members for the version at {@link PointInTimeType#CURRENT_POINT_IN_TIME}</li>
018 * </ul>
019 *
020 */
021public class RelationMemberListViewer extends HistoryViewerPanel {
022
023    protected static class MemberModelChanged implements TableModelListener {
024        private final JTable table;
025
026        protected MemberModelChanged(JTable table) {
027            this.table = table;
028        }
029
030        @Override
031        public void tableChanged(TableModelEvent e) {
032            Rectangle rect = table.getCellRect(((DiffTableModel)e.getSource()).getFirstChange(), 0, true);
033            table.scrollRectToVisible(rect);
034        }
035    }
036
037    @Override
038    protected JTable buildReferenceTable() {
039        JTable table = new JTable(
040                model.getRelationMemberTableModel(PointInTimeType.REFERENCE_POINT_IN_TIME),
041                new RelationMemberTableColumnModel()
042                );
043        table.setName("table.referencememberlisttable");
044        table.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
045        selectionSynchronizer.participateInSynchronizedSelection(table.getSelectionModel());
046        table.getModel().addTableModelListener(new MemberModelChanged(table));
047        return table;
048    }
049
050    @Override
051    protected JTable buildCurrentTable() {
052        JTable table = new JTable(
053                model.getRelationMemberTableModel(PointInTimeType.CURRENT_POINT_IN_TIME),
054                new RelationMemberTableColumnModel()
055                );
056        table.setName("table.currentmemberlisttable");
057        table.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
058        selectionSynchronizer.participateInSynchronizedSelection(table.getSelectionModel());
059        table.getModel().addTableModelListener(new MemberModelChanged(table));
060        return table;
061    }
062
063    /**
064     * Constructs a new {@code RelationMemberListViewer}.
065     * @param model The history browsing model
066     */
067    public RelationMemberListViewer(HistoryBrowserModel model) {
068        super(model);
069    }
070}