/* *  Copyright (c) 2001 Sun Microsystems, Inc.  All rights *  reserved. * *  Redistribution and use in source and binary forms, with or without *  modification, are permitted provided that the following conditions *  are met: * *  1. Redistributions of source code must retain the above copyright *  notice, this list of conditions and the following disclaimer. * *  2. Redistributions in binary form must reproduce the above copyright *  notice, this list of conditions and the following disclaimer in *  the documentation and/or other materials provided with the *  distribution. * *  3. The end-user documentation included with the redistribution, *  if any, must include the following acknowledgment: *  "This product includes software developed by the *  Sun Microsystems, Inc. for Project JXTA." *  Alternately, this acknowledgment may appear in the software itself, *  if and wherever such third-party acknowledgments normally appear. * *  4. The names "Sun", "Sun Microsystems, Inc.", "JXTA" and "Project JXTA" *  must not be used to endorse or promote products derived from this *  software without prior written permission. For written *  permission, please contact Project JXTA at http://www.jxta.org. * *  5. Products derived from this software may not be called "JXTA", *  nor may "JXTA" appear in their name, without prior written *  permission of Sun. * *  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED *  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES *  OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE *  DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR *  ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, *  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT *  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF *  USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND *  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, *  OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT *  OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF *  SUCH DAMAGE. *  ==================================================================== * *  This software consists of voluntary contributions made by many *  individuals on behalf of Project JXTA.  For more *  information on Project JXTA, please see *  <http://www.jxta.org/>. * *  This license is based on the BSD license adopted by the Apache Foundation. * *  $Id: MapPanel.java,v 1.2 2006/07/13 05:26:37 nano Exp $ */package net.jxta.myjxta.misc.beam;import javax.swing.*;import java.awt.*;import java.awt.event.MouseEvent;import java.awt.event.MouseListener;import java.awt.event.MouseMotionListener;import java.net.URL;import java.util.Enumeration;import java.util.Hashtable;import java.util.Properties;public class MapPanel extends JPanel implements MouseMotionListener, MouseListener {    private Image img;    private JLabel status = null;    private double gpsx0 = 0.0;    private double gpsy0 = 0.0;    private double gpsx1 = 0.0;    private double gpsy1 = 0.0;    private Hashtable<String, Hashtable<String, Properties>> locations = null;    private Hashtable<String, String> iconloc = null;    private Image simg = null; //support one icon resource currently    private JPopupMenu popup = null;    private boolean popupIsVisible = false;    private String currloc = null;    public MapPanel(URL imgurl, JLabel status) {        System.out.println("MapPanel imgurl = " + imgurl.toString());        this.status = status;        locations = new Hashtable<String, Hashtable<String, Properties>>();        iconloc = new Hashtable<String, String>();        ImageIcon icon = new ImageIcon(imgurl);        img = icon.getImage();        addMouseMotionListener(this);        addMouseListener(this);        try {            URL iconurl = getClass().getResource("resources/sensorIcon.gif");            ImageIcon sicon = new ImageIcon(iconurl);            simg = sicon.getImage();        } catch (Exception exc) {            exc.printStackTrace();        }    }    public Image getImage() {        return img;    }    public void setImage(Image img) {        this.img = img;    }    public void setGPSUpperLeft(double x, double y) {        System.out.println("set upper left gps");        this.gpsx0 = x;        this.gpsy0 = y;    }    public void setGPSLowerRight(double x, double y) {        System.out.println("set lower right gps");        this.gpsx1 = x;        this.gpsy1 = y;    }    /**     * method to add a sensor.  The way MapPanel draws must be fast     * and what we will do is to take the properties file for a sensor     * and extract the gps coordinates and insert into a hashtable     * using the combined gpsx and gpsy coordinate to two decimal     * places as the hash.  At each hash key, we store a Hashtable of     * Properties representing 1 or more sensors at that relative     * GPS location.  The nested Hashtable is indexed by sensorID.     * The MapPanel will show only one icon for a location     * on the map, but post a popup display of all SIDs.     */    public void addSensor(Properties p) {        try {            // reduce gpsx and gpsy coordinate to 1 decimal place            // then generate a locationkey            double gpsx = Double.parseDouble(p.getProperty("gpsx"));            double gpsy = Double.parseDouble(p.getProperty("gpsy"));            //System.out.println("addSensor: longitude = " + gpsx + ", latitude = " + gpsy);            String lochash = getGPSLocationKey(gpsx, gpsy, 2);            String lochash2 = getGPSLocationKey(gpsx, gpsy, 1);            String sid = p.getProperty("sid");            System.out.println("MapPanel added sid [" + sid + "] at: " + lochash);            // see if current location already exists and            // if not, create a new hashtable and nest into            // locations            Hashtable<String, Properties> sensors = (locations.get(lochash));            if (sensors == null) {                sensors = new Hashtable<String, Properties>();                locations.put(lochash, sensors); // high res location sensor                iconloc.put(lochash2, lochash); // low res for icon mouseover            }            // add the specific sensor properties into specific hashtable            // of sensors at this specific location            sensors.put(sid, p);        } catch (Exception exc) {            exc.printStackTrace();        }    }    private String getGPSLocationKey(double x, double y, int decplaces) {        if (decplaces <= 0) decplaces = 2;        double divisor = 1.0;        for (int i = 0; i < decplaces; i++) {            divisor *= 10.0;        }        double xd = ((int) (x * divisor - 0.5)) / divisor;        double yd = ((int) (y * divisor + 0.5)) / divisor;        String key = Double.toString(xd) + "|" + Double.toString(yd);        return key;    }    public void paintComponent(Graphics g) {        super.paintComponent(g);        Dimension dim = getSize();        int x0 = 0;        int y0 = 0;        int imgW = 0;        int imgH = 0;        if (img != null) {            imgW = img.getWidth(this);            imgH = img.getHeight(this);            x0 = (dim.width - imgW) / 2;            y0 = (dim.height - imgH) / 2;            g.drawImage(img, x0, y0, this);            // now draw the sensor icon at each location            Enumeration<String> loc = locations.keys();            while (loc.hasMoreElements() && simg != null) {                String pos = loc.nextElement();                String lon = pos.substring(0, pos.indexOf("|"));                String lat = pos.substring(pos.indexOf("|") + 1);                double gpsx = Double.parseDouble(lon);                double gpsy = Double.parseDouble(lat);                //System.out.println("Paint Icon: longitude = " + gpsx + ", latitude = " + gpsy);                double fractionx = (gpsx - gpsx0) / (gpsx1 - gpsx0);                double fractiony = (gpsy - gpsy0) / (gpsy1 - gpsy0);                int x1 = x0 + (int) (fractionx * imgW) - 10;                int y1 = y0 + (int) (fractiony * imgH) - 10;                g.drawImage(simg, x1, y1, this);            }        }    }    public void mouseDragged(MouseEvent e) {        mouseMoved(e);    }    public void mouseMoved(MouseEvent e) {        if (img != null) {            Dimension dim = getSize();            int imgw = img.getWidth(this);            int imgh = img.getHeight(this);            int x0 = (dim.width - imgw) / 2;            int y0 = (dim.height - imgh) / 2;            int x = e.getX();            int y = e.getY();            double diffgpsx = gpsx1 - gpsx0;            double diffgpsy = gpsy1 - gpsy0;            double currgpsx = ((int) (10000 * (gpsx0 + diffgpsx * (x - x0) / imgw) + 0.5)) / 10000.0;            double currgpsy = ((int) (10000 * (gpsy0 + diffgpsy * (y - y0) / imgh) + 0.5)) / 10000.0;            status.setText("GPS coordinates:  Long. = " + currgpsx + ",  Lat. = " + currgpsy);            //System.out.println("GPS coordinates:  Lat = " + currgpsy + ",  Long. = " + currgpsx);            // now create a popup menu if inside a sensor - may need to reduce            // accuracy for this map to 1 decimal place            String lochash = getGPSLocationKey(currgpsx, currgpsy, 1);            String sensor = (iconloc.get(lochash));            if (sensor != null) { // location exists, make popup visible                if (currloc != null && currloc.equals(lochash)) { // is same popup                    if (!popupIsVisible) {                        popup.show(e.getComponent(), e.getX(), e.getY());                    }                } else {                    // hide and dispose of old popup                    if (popup != null) {                        popup.setVisible(false);                        popup = null;                    }                    // create new popup                    Hashtable sensors = locations.get(sensor);                    Enumeration keys = sensors.keys();                    popup = new JPopupMenu();                    while (keys.hasMoreElements()) {                        Properties p = (Properties) (sensors.get(keys.nextElement()));                        if (p != null) {                            String sid = p.getProperty("sid");                            String desc = p.getProperty("desc");                            popup.add(new JMenuItem(sid + ": " + desc));                        }                    }                    popup.show(e.getComponent(), e.getX(), e.getY());                    popupIsVisible = true;                    currloc = lochash;                }            } else { // make sure nothing shows                if (popup != null) popup.setVisible(false);                popup = null;                popupIsVisible = false;                currloc = null;            }        }    }    public void mouseClicked(MouseEvent e) {    }    public void mousePressed(MouseEvent e) {    }    public void mouseReleased(MouseEvent e) {    }    public void mouseEntered(MouseEvent e) {    }    public void mouseExited(MouseEvent e) {        // make sure to hide the popup.        if (popup != null) {            popup.setVisible(false);            popup = null;            currloc = null;            popupIsVisible = false;        }    }}