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nanomap/gpsclient.cpp
2010-06-09 11:19:24 +02:00

68 lines
1.9 KiB
C++

/*
* Copyright 2008 Niels Kummerfeldt <niels.kummerfeldt@tu-harburg.de>
*
* This program 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 2 of the License, or
* (at your option) any later version.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA
*/
#include "gpsclient.h"
#include <QtCore/QDebug>
#include <QtCore/QTimer>
GpsClient::GpsClient(QObject *parent) : QObject(parent),
m_socket(new QTcpSocket(this))
{
connect(m_socket, SIGNAL(connected()), this, SIGNAL(connected()));
connect(m_socket, SIGNAL(connected()), this, SLOT(conn()));
connect(m_socket, SIGNAL(disconnected()), this, SIGNAL(disconnected()));
connect(m_socket, SIGNAL(readyRead()), this, SLOT(readData()));
}
void GpsClient::connectGps()
{
m_socket->connectToHost("127.0.0.1", 2947);
}
void GpsClient::disconnectGps()
{
m_socket->disconnectFromHost();
}
void GpsClient::query()
{
QTextStream out(m_socket);
out << "p\n";
}
void GpsClient::readData()
{
QTextStream in(m_socket);
QString reply = in.readLine();
reply.remove(0, 7);
if (reply != "?") {
float lat = reply.section(' ', 0, 0).toFloat();
float lon = reply.section(' ', 1, 1).toFloat();
emit position(QPointF(lon, lat));
}
QTimer::singleShot(1000, this, SLOT(query()));
}
void GpsClient::conn()
{
QTimer::singleShot(1000, this, SLOT(query()));
}