<![CDATA[
/**
* Title: iSIM
* Copyright: Copyright (c) 2002
* Company: University of Oregon Computer Science Dept.
*
* @author Jason Prideaux
* @version 1.0
*
*/
import gps_monitor.gps.*;
import gps_monitor.gui.*;
import gps_monitor.util.*;
/* ====================================================================== */
/** This class is for running the GpsMonitor iPAQ Application.
*
*/
public class GpsProxy extends Thread implements iPAQProxy{
/** The iPAQ application owner that wants the data */
private GpsMonitorUI parent;
/** The gps object that gives us data. */
private GpsGenerator gps;
/** Port to use for connecting to the simulator. */
private int port;
/** Port to use in connecting to a serial gps device. */
private String serial_port;
/* ====================================================================== */
/** This simple Constructor opens merely instantiates this proxy object
* and gets the owner of this proxy that wants incoming data.
*
* @param parent The parent to pass data up to.
*
*/
public GpsProxy(GpsMonitorUI parent, int port, String serial_port){
this.parent = parent;
this.port = port;
this.serial_port = serial_port;
} //Constructor
/* ====================================================================== */
/** This method will open a connection to receive data. This method is used
* for openning a connection to get real data or simulated data. However,
* there may be more than 2 choices for the proxy, necessitating the creation
* of multiple methods.
*
* @param isim True if connecting to simulator.
*
*/
public void connect(boolean isim){
try{
if(isim){
gps = new NmeaSocketGps(parent, port);
}else{
gps = new NmeaSerialGps(serial_port, 9600, parent);
}
}catch (Exception e){}
this.start();
} //method:
/* ====================================================================== */
/** This method is used to close a connection, thus the iPAQ application
* will no longer receive any data through this proxy.
*
*/
public void closeConnection(){
this.stop();
} //method: closeConnection
/* ====================================================================== */
/** This method is not used by GPS, since this GPS application only receives
* data, it does not send any.
*
* @param data Data to send either to simulator or some real source.
*
*/
public void sendData(Object data){}
/* ====================================================================== */
/** This loop continues polling for data until it is stopped.
*
*/
public void run(){
while (true){
try{
Thread.sleep(5000);
}catch(Exception e){System.out.println(e);}
//check for new gps values
pollGps();
} //while
} //method: run
/* ====================================================================== */
/** This method updates the GUI with the latest values available from the
* GPS or simulator.
*
*/
private void pollGps(){
try{
//Relay the data received to the UI//Relay the data received to the UI
//I really only care about coordinates and heading, maybe speed for later
//update our gps position on the display chart in the UI
LatOrLongitude lat = gps.getLatitude();
LatOrLongitude lon = gps.getLongitude();
Position chart_pos = new Position();
chart_pos.lat = ((int)lat.getDegrees())*60 + lat.getMinutes();
chart_pos.lng = (((int)lon.getDegrees())*-60) + lon.getMinutes()+60;
//Point p = chartdata.transPos(chart_pos);
//parent.updatePos(p,chartdata.transPos(calcPred(chart_pos)));
//now set the values in the UI
parent.setLatitude(lat.toStringDDMM());
parent.setLongitude(lon.toStringDDMM());
parent.setHeading(gps.getTrueHeading());
}catch (NullPointerException e){}
} //method: pollGps
} //class: GpsProxy
]]>