// License: GPL. For details, see LICENSE file.
package org.openstreetmap.josm.actions;
import static org.openstreetmap.josm.tools.I18n.tr;
import static org.openstreetmap.josm.gui.help.HelpUtil.ht;
import java.awt.event.ActionEvent;
import java.awt.event.KeyEvent;
import java.util.Collection;
import java.util.List;
import org.openstreetmap.josm.data.osm.DataSet;
import org.openstreetmap.josm.data.osm.OsmPrimitive;
import org.openstreetmap.josm.data.osm.visitor.MergeSourceBuildingVisitor;
import org.openstreetmap.josm.gui.dialogs.LayerListDialog;
import org.openstreetmap.josm.gui.layer.Layer;
import org.openstreetmap.josm.gui.layer.OsmDataLayer;
import org.openstreetmap.josm.tools.Shortcut;
public class MergeSelectionAction extends AbstractMergeAction {
public MergeSelectionAction() {
super(tr("Merge selection"), "dialogs/mergedown", tr("Merge the currently selected primitives into another layer"), Shortcut
.registerShortcut("system:mergeselection", tr("Edit: {0}", tr("Merge selection")), KeyEvent.VK_M, Shortcut.GROUP_MENU, Shortcut.SHIFT_DEFAULT),
true /* register */
);
putValue("help", ht("/Action/MergeSelection"));
}
public void mergeSelected(DataSet source) {
List<Layer> targetLayers = LayerListDialog.getInstance().getModel().getPossibleMergeTargets(getEditLayer());
if (targetLayers.isEmpty()) {
warnNoTargetLayersForSourceLayer(getEditLayer());
return;
}
Layer targetLayer = askTargetLayer(targetLayers);
if (targetLayer == null)
return;
MergeSourceBuildingVisitor builder = new MergeSourceBuildingVisitor(getEditLayer().data);
((OsmDataLayer)targetLayer).mergeFrom(builder.build());
}
public void actionPerformed(ActionEvent e) {
if (getEditLayer() == null || getEditLayer().data.getSelected().isEmpty())
return;
mergeSelected(getEditLayer().data);
}
@Override
protected void updateEnabledState() {
if (getCurrentDataSet() == null) {
setEnabled(false);
} else {
updateEnabledState(getCurrentDataSet().getSelected());
}
}
@Override
protected void updateEnabledState(Collection<? extends OsmPrimitive> selection) {
setEnabled(selection != null && !selection.isEmpty());
}
}