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| 1 | /* |
| 2 | * Copyright 2008, 2010 Niels Kummerfeldt <niels.kummerfeldt@tu-harburg.de> |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or modify |
| 5 | * it under the terms of the GNU General Public License as published by |
| 6 | * the Free Software Foundation; either version 2 of the License, or |
| 7 | * (at your option) any later version. |
| 8 | * |
| 9 | * This program is distributed in the hope that it will be useful, |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | * GNU General Public License for more details. |
| 13 | * |
| 14 | * You should have received a copy of the GNU General Public License |
| 15 | * along with this program; if not, write to the Free Software |
| 16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| 17 | * Boston, MA 02110-1301 USA |
| 18 | */ |
| 19 | |
| 20 | #include "gpsclient.h" |
| 21 | |
| 22 | #include <QtCore/QDebug> |
| 23 | #include <QtCore/QStringList> |
| 24 | #include <QtCore/QTimer> |
| 25 | |
| 26 | GpsClient::GpsClient(QObject *parent) : QObject(parent), |
| 27 | m_socket(new QTcpSocket(this)) |
| 28 | { |
| 29 | connect(m_socket, SIGNAL(connected()), this, SIGNAL(connected())); |
| 30 | connect(m_socket, SIGNAL(connected()), this, SLOT(conn())); |
| 31 | connect(m_socket, SIGNAL(disconnected()), this, SIGNAL(disconnected())); |
| 32 | connect(m_socket, SIGNAL(readyRead()), this, SLOT(readData())); |
| 33 | } |
| 34 | |
| 35 | void GpsClient::connectGps() |
| 36 | { |
| 37 | m_socket->connectToHost("127.0.0.1", 2947); |
| 38 | } |
| 39 | |
| 40 | void GpsClient::disconnectGps() |
| 41 | { |
| 42 | QTextStream out(m_socket); |
| 43 | out << "?WATCH={\"enable\":false}\n"; |
| 44 | m_socket->disconnectFromHost(); |
| 45 | } |
| 46 | |
| 47 | void GpsClient::readData() |
| 48 | { |
| 49 | QTextStream in(m_socket); |
| 50 | QString reply = in.readLine(); |
| 51 | if (reply.contains("TPV")) { |
| 52 | reply.remove("{"); |
| 53 | reply.remove("}"); |
| 54 | qreal lat = 0; |
| 55 | qreal lon = 0; |
| 56 | int mode = 0; |
| 57 | QStringList entries = reply.split(","); |
| 58 | foreach (const QString &entry, entries) { |
| 59 | if (entry.contains("lat")) { |
| 60 | lat = entry.section(":", 1, 1).toDouble(); |
| 61 | } else if (entry.contains("lon")) { |
| 62 | lon = entry.section(":", 1, 1).toDouble(); |
| 63 | } else if (entry.contains("alt")) { |
| 64 | qreal alt = entry.section(":", 1, 1).toDouble(); |
| 65 | emit altitude(alt); |
| 66 | } else if (entry.contains("track")) { |
| 67 | qreal track = entry.section(":", 1, 1).toDouble(); |
| 68 | emit direction(track); |
| 69 | } else if (entry.contains("speed")) { |
| 70 | qreal currentSpeed = entry.section(":", 1, 1).toDouble(); |
| 71 | emit speed(currentSpeed); |
| 72 | } else if (entry.contains("mode")) { |
| 73 | // 0: no mode value yet seen |
| 74 | // 1: no fix |
| 75 | // 2: 2D |
| 76 | // 3: 3D |
| 77 | mode = entry.section(":", 1, 1).toInt(); |
| 78 | } |
| 79 | } |
| 80 | if (mode > 1) { |
| 81 | emit fixed(true); |
| 82 | emit position(QPointF(lon, lat)); |
| 83 | } else { |
| 84 | emit fixed(false); |
| 85 | } |
| 86 | } |
| 87 | } |
| 88 | |
| 89 | void GpsClient::conn() |
| 90 | { |
| 91 | QTextStream out(m_socket); |
| 92 | out << "?WATCH={\"enable\":true,\"json\":true}\n"; |
| 93 | } |
| 94 | |
| 95 |
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