locationpopupmenu.java

openmap java写的开源数字地图程序. 用applet实现,可以像google map 那样放大缩小地图.

// **********************************************************************
// 
// <copyright>
// 
//  BBN Technologies
//  10 Moulton Street
//  Cambridge, MA 02138
//  [phone]
// 
//  Copyright (C) BBNT Solutions LLC. All rights reserved.
// 
// </copyright>
// **********************************************************************
// 
// $Source: /cvs/distapps/openmap/src/openmap/com/bbn/openmap/layer/location/LocationPopupMenu.java,v $
// $RCSfile: LocationPopupMenu.java,v $
// $Revision: 1.2.2.1 $
// $Date: 2004/10/14 18:27:10 $
// $Author: dietrick $
// 
// **********************************************************************

package com.bbn.openmap.layer.location;

/*  Java Core  */
import java.awt.event.*;

/*  OpenMap  */
import com.bbn.openmap.*;

import javax.swing.JPopupMenu;

/**
 * This is the menu that pops up when the mouse button is pressed,
 * giving a set of options to the user. The LocationMenu keeps track
 * of the location of the last mouse event, the last Location (if
 * there was one), and the MapBean.
 */
public class LocationPopupMenu extends JPopupMenu {
    /** The location of the event. */
    protected MouseEvent event;
    /** Used to recenter the map. */
    protected MapBean map;
    /** Used as a reference for the details gathering. */
    protected Location loc;

    /**
     * Construct an empty object
     */
    public LocationPopupMenu() {}

    /**
     * set the location of the menu
     * 
     * @param location the location to place the menu at
     */
    public void setLoc(Location location) {
        loc = location;
    }

    /**
     * set the map the menu is associated with
     * 
     * @param aMap the map the menu is for
     */
    public void setMap(MapBean aMap) {
        map = aMap;
    }

    /**
     * set the event the menu is for
     * 
     * @param anEvt the event for the menu
     */
    public void setEvent(MouseEvent anEvt) {
        event = anEvt;
    }

    /**
     * returns the location of the menu
     * 
     * @return the location
     */
    public Location getLoc() {
        return loc;
    }

    /**
     * returns the event for the menu
     * 
     * @return the event
     */
    public MouseEvent getEvent() {
        return event;
    }

    /**
     * returns the map the menu is for
     * 
     * @return the menu
     */
    public MapBean getMap() {
        return map;
    }
}