001// License: GPL. For details, see LICENSE file. 002package org.openstreetmap.josm.gui.history; 003 004import static org.openstreetmap.josm.tools.I18n.tr; 005 006import java.awt.Point; 007import java.awt.Rectangle; 008 009import javax.swing.JTable; 010import javax.swing.ListSelectionModel; 011 012import org.openstreetmap.josm.data.osm.PrimitiveId; 013import org.openstreetmap.josm.data.osm.RelationMemberData; 014import org.openstreetmap.josm.data.osm.SimplePrimitiveId; 015import org.openstreetmap.josm.gui.util.TableHelper; 016import org.openstreetmap.josm.gui.widgets.PopupMenuLauncher; 017 018/** 019 * RelationMemberListViewer is a UI component which displays the list of relation members of two 020 * version of a {@link org.openstreetmap.josm.data.osm.Relation} in a {@link org.openstreetmap.josm.data.osm.history.History}. 021 * 022 * <ul> 023 * <li>on the left, it displays the list of relation members for the version at {@link PointInTimeType#REFERENCE_POINT_IN_TIME}</li> 024 * <li>on the right, it displays the list of relation members for the version at {@link PointInTimeType#CURRENT_POINT_IN_TIME}</li> 025 * </ul> 026 * @since 1709 027 */ 028public class RelationMemberListViewer extends HistoryViewerPanel { 029 030 @Override 031 protected JTable buildReferenceTable() { 032 return buildTable(PointInTimeType.REFERENCE_POINT_IN_TIME, "table.referencememberlisttable"); 033 } 034 035 @Override 036 protected JTable buildCurrentTable() { 037 return buildTable(PointInTimeType.CURRENT_POINT_IN_TIME, "table.currentmemberlisttable"); 038 } 039 040 private JTable buildTable(PointInTimeType pointInTimeType, String name) { 041 final DiffTableModel tableModel = model.getRelationMemberTableModel(pointInTimeType); 042 final RelationMemberTableColumnModel columnModel = new RelationMemberTableColumnModel(); 043 final JTable table = new JTable(tableModel, columnModel); 044 TableHelper.setFont(table, getClass()); 045 tableModel.addTableModelListener(new ReversedChangeListener( 046 table, columnModel, tr("The members of this relation are in reverse order"))); 047 table.setName(name); 048 table.setSelectionMode(ListSelectionModel.SINGLE_SELECTION); 049 selectionSynchronizer.participateInSynchronizedSelection(table.getSelectionModel()); 050 enableSemanticSelectionSynchronization(table.getSelectionModel(), 051 tableModel, model.getRelationMemberTableModel(pointInTimeType.opposite()), 052 this::isSemanticallyEquivalent); 053 table.getTableHeader().setReorderingAllowed(false); 054 table.addMouseListener(new InternalPopupMenuLauncher()); 055 table.getModel().addTableModelListener(e -> { 056 Rectangle rect = table.getCellRect(((DiffTableModel) e.getSource()).getFirstChange(), 0, true); 057 table.scrollRectToVisible(rect); 058 }); 059 table.addMouseListener(new ShowHistoryAction.DoubleClickAdapter(e -> { 060 int row = table.rowAtPoint(e.getPoint()); 061 return primitiveIdAtRow(tableModel, row); 062 })); 063 return table; 064 } 065 066 private boolean isSemanticallyEquivalent(TwoColumnDiff.Item o1, TwoColumnDiff.Item o2) { 067 RelationMemberData rm1 = (RelationMemberData) o1.value; 068 RelationMemberData rm2 = (RelationMemberData) o2.value; 069 return rm1 != null && rm2 != null 070 && rm1.getMemberId() == rm2.getMemberId() 071 && rm1.getMemberType() == rm2.getMemberType(); 072 } 073 074 /** 075 * Constructs a new {@code RelationMemberListViewer}. 076 * @param model The history browsing model 077 */ 078 public RelationMemberListViewer(HistoryBrowserModel model) { 079 super(model); 080 } 081 082 private static PrimitiveId primitiveIdAtRow(DiffTableModel model, int row) { 083 if (row < 0) 084 return null; 085 RelationMemberData rm = (RelationMemberData) model.getValueAt(row, 0).value; 086 if (rm == null) 087 return null; 088 return new SimplePrimitiveId(rm.getUniqueId(), rm.getType()); 089 } 090 091 static class InternalPopupMenuLauncher extends PopupMenuLauncher { 092 InternalPopupMenuLauncher() { 093 super(new ListPopupMenu(tr("Zoom to member"), tr("Zoom to this member in the current data layer"))); 094 095 } 096 097 @Override 098 protected int checkTableSelection(JTable table, Point p) { 099 int row = super.checkTableSelection(table, p); 100 ((ListPopupMenu) menu).prepare(primitiveIdAtRow((DiffTableModel) table.getModel(), row)); 101 return row; 102 } 103 } 104 105}