source: osm/applications/editors/josm/plugins/reltoolbox/src/relcontext/actions/EditChosenRelationAction.java

// License: GPL. For details, see LICENSE file.
package relcontext.actions;

import static org.openstreetmap.josm.tools.I18n.tr;

import java.awt.event.ActionEvent;

import javax.swing.AbstractAction;

import org.openstreetmap.josm.data.osm.Relation;
import org.openstreetmap.josm.gui.MainApplication;
import org.openstreetmap.josm.gui.dialogs.relation.RelationEditor;
import org.openstreetmap.josm.tools.ImageProvider;

import relcontext.ChosenRelation;
import relcontext.ChosenRelationListener;

/**
 * Opens an editor for chosen relation.
 *
 * @author Zverik
 */
public class EditChosenRelationAction extends AbstractAction implements ChosenRelationListener {
    private final ChosenRelation rel;

    public EditChosenRelationAction(ChosenRelation rel) {
        putValue(SMALL_ICON, ImageProvider.get("dialogs", "edit", ImageProvider.ImageSizes.SMALLICON));
        putValue(SHORT_DESCRIPTION, tr("Open relation editor for the chosen relation"));
        this.rel = rel;
        rel.addChosenRelationListener(this);
        setEnabled(rel.get() != null);
    }

    @Override
    public void actionPerformed(ActionEvent e) {
        Relation relation = rel.get();
        if (relation == null) return;
        RelationEditor.getEditor(MainApplication.getLayerManager().getEditLayer(), relation, null).setVisible(true);
    }

    @Override
    public void chosenRelationChanged(Relation oldRelation, Relation newRelation) {
        setEnabled(newRelation != null);
    }
}