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 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    protected JTable buildReferenceTable() {
038        JTable table = new JTable(
039                model.getRelationMemberTableModel(PointInTimeType.REFERENCE_POINT_IN_TIME),
040                new RelationMemberTableColumnModel()
041                );
042        table.setName("table.referencememberlisttable");
043        table.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
044        selectionSynchronizer.participateInSynchronizedSelection(table.getSelectionModel());
045        table.getModel().addTableModelListener(new MemberModelChanged(table));
046        return table;
047    }
048
049    protected JTable buildCurrentTable() {
050        JTable table = new JTable(
051                model.getRelationMemberTableModel(PointInTimeType.CURRENT_POINT_IN_TIME),
052                new RelationMemberTableColumnModel()
053                );
054        table.setName("table.currentmemberlisttable");
055        table.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
056        selectionSynchronizer.participateInSynchronizedSelection(table.getSelectionModel());
057        table.getModel().addTableModelListener(new MemberModelChanged(table));
058        return table;
059    }
060
061    /**
062     * Constructs a new {@code RelationMemberListViewer}.
063     * @param model The history browsing model
064     */
065    public RelationMemberListViewer(HistoryBrowserModel model) {
066        super(model);
067    }
068}