001// License: GPL. For details, see LICENSE file.
002// Author: David Earl
003package org.openstreetmap.josm.actions;
004
005import static org.openstreetmap.josm.gui.help.HelpUtil.ht;
006import static org.openstreetmap.josm.tools.I18n.tr;
007
008import java.awt.event.ActionEvent;
009import java.awt.event.KeyEvent;
010import java.util.Collection;
011
012import org.openstreetmap.josm.Main;
013import org.openstreetmap.josm.data.osm.OsmPrimitive;
014import org.openstreetmap.josm.data.osm.PrimitiveDeepCopy;
015import org.openstreetmap.josm.tools.Shortcut;
016
017public final class DuplicateAction extends JosmAction {
018
019    /**
020     * Constructs a new {@code DuplicateAction}.
021     */
022    public DuplicateAction() {
023        super(tr("Duplicate"), "duplicate",
024                tr("Duplicate selection by copy and immediate paste."),
025                Shortcut.registerShortcut("system:duplicate", tr("Edit: {0}", tr("Duplicate")), KeyEvent.VK_D, Shortcut.CTRL), true);
026        putValue("help", ht("/Action/Duplicate"));
027    }
028
029    @Override
030    public void actionPerformed(ActionEvent e) {
031        Main.main.menu.paste.pasteData(new PrimitiveDeepCopy(getCurrentDataSet().getSelected()), getEditLayer(), e);
032    }
033
034    @Override
035    protected void updateEnabledState() {
036        if (getCurrentDataSet() == null) {
037            setEnabled(false);
038        } else {
039            updateEnabledState(getCurrentDataSet().getSelected());
040        }
041    }
042
043    @Override
044    protected void updateEnabledState(Collection<? extends OsmPrimitive> selection) {
045        setEnabled(selection != null && !selection.isEmpty());
046    }
047}