nl.cloudfarming.client.geoviewer.jxmap.map.PickLocationAction Maven / Gradle / Ivy

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AgroSense geoviewer JXMap implementation. Contains a map/geoviewer TopComponent based on the JXMap classes from swingx.
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/**
 * Copyright (C) 2008-2012 AgroSense Foundation.
 *
 * AgroSense is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * There are special exceptions to the terms and conditions of the GPLv3 as it is applied to
 * this software, see the FLOSS License Exception
 * .
 *
 * AgroSense is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with AgroSense.  If not, see .
 */
package nl.cloudfarming.client.geoviewer.jxmap.map;

import java.awt.event.ActionEvent;
import javax.swing.AbstractAction;
import javax.swing.Action;
import nl.cloudfarming.client.geoviewer.DynamicPoint;
import org.jdesktop.swingx.JXMapViewer;
import org.jdesktop.swingx.mapviewer.GeoPosition;
import org.openide.nodes.Node;
import org.openide.util.NbBundle;

/**
 * The action for picking a location for a DynamicGeographical.
 * 
 * @author Wytse Visser
 */
@NbBundle.Messages("pick_location_action_name=Pick location")
public class PickLocationAction extends AbstractAction {

    private final DynamicPoint point;
    private final JXMapViewer mapViewer;

    private PickLocationAction(DynamicPoint point, JXMapViewer mapViewer) {
        putValue(NAME, Bundle.pick_location_action_name());
        this.point = point;
        this.mapViewer = mapViewer;
    }

    /**
     * Checks if the node's lookup contains a DynamicGeometrical. If it does,
     * create and return a PickLocationAction for the scene.
     *
     * @param node The node with (or without) a DynamicGeometrical in its lookup
     * @param scene The scene to create the PickLocationAction for
     * @return The created action (or null of the node's lookup doesn't contain
     * a DynamicGeometrical)
     */
    static Action create(Node node, MapScene scene) {
        DynamicPoint geometrical = node.getLookup().lookup(DynamicPoint.class);
        if (geometrical != null) {
            return new PickLocationAction(geometrical, scene.getMapViewer());
        }
        return null;
    }

    /**
     * Creates a new PickLocationAction and adds it to the mapViewer
     *
     * @param e The ActionEvent that caused this method to be invoked.
     */
    @Override
    public void actionPerformed(ActionEvent e) {
        new LocationPicker(mapViewer).start();
    }

    @Override
    public boolean equals(Object obj) {
        if (obj == null) {
            return false;
        }
        if (getClass() != obj.getClass()) {
            return false;
        }
        final PickLocationAction other = (PickLocationAction) obj;
        if (this.point != other.point && (this.point == null || !this.point.equals(other.point))) {
            return false;
        }
        if (this.mapViewer != other.mapViewer && (this.mapViewer == null || !this.mapViewer.equals(other.mapViewer))) {
            return false;
        }
        return true;
    }

    @Override
    public int hashCode() {
        int hash = 7;
        return hash;
    }

    /**
     * The class can be used for picking a new location for a
     * DynamicGeographical. It should be added to the given JXMapViewer. If the
     * user clicks on the map, it sets the position of the DynamicGeometrical to
     * the selected position. Then (or if the user presses Escape) it removes
     * itself from the JXMapViewer.
     */
    class LocationPicker extends AbstractLocationPicker {

        public LocationPicker(JXMapViewer mapViewer) {
            super(mapViewer);
        }

        @Override
        public boolean select(GeoPosition position) {
            PickLocationAction.this.point.setPosition(position.getLongitude(), position.getLatitude());
            return true;
        }

    }
}