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